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WorksheetsFinal Exam
Total questions: 160
Worksheet time: 5hrs 29mins
Factor the polynomial.
x2-4x-32
(x-8)(x+4)
(x-4)(x-32)
(x+3)(x-4)
(x+2)(x+5)
10x2 + 15x-5
3x2 + 18x +15
Hint: Factor GCF first.
3a2 + 4a + 1
n2-13n+40
3v2 - 4v - 7
Factor x2 + 6x + 9 = 0 and solve for x.
(x+3)(x+3); x = -3
(x+4)(x+5); x=-4, -5
(x-3)(x-3); x=3
Not factorable
f(x) = 2x4 + 19x2 + 24
f(x) = 6x5 + 9x4 + 2x3 + 3x2 - 4x -6
How many terms are in this polynomial?
2x3 - 8x2 + 3x - 7
7
1
4
2
What is the degree of this polynomial?
2x4 - 3x5 + x
-3
2
4
5
Solve the polynomial equation:
x2-4x-32 =0
x = -4,8
x = 4,32
x = -3,4
x= -2,-5
Solve the polynomial equation:
6x2-27x
x = -3, -1/6
x = 0, 9/2
x = 0, 9
x= -3/2, 3
Solve the polynomial equation:
3x2 + 18x +15
x = 1
x = 1, 5
x = -5, -1
Prime
Solve the polynomial equation:
n2-13n+40
n = 5, 8
n = -5, 8
n = -8, 5
n = 6, 1
Solve the polynomial equation:
x2 + 15x + 64 = 20
x = -8, 2
x = -7, 5
x = -11, -4
x = -11
x2 + 15x + 64 = 20
Solve (x2-9) = 0
x = 9
x = 9, -9
x = 3, -3
x = 3
Solve the following equation. x4 + 4x3 + 3x2 = 0
x = 0, x = 3, x = 1
x = -3, x = -1
x = 3, x = 1
x = 0, x = -3, x = -1
(2x - 1)(x + 4) = 0
x2+14x=0
Solve: 2x2-14x+24 = 0
x = 4, 3
x = 9/2, 10/4
x = -3, -4
x = -9/2, -10/4
What are the solutions? (Hint Factor and solve)
x=0, x=-2 and x=7
x=2 and x=7
x=-2 and x=7
x=0 and x=3 and x= 42
x2+5x+6=0 are
Solve
x2 + 2x - 20 = 4
x = -6, x = 4
x = 6, x = -4
x = 12, x = -2
x = 8, x = -3
16a2 - 9 = 0
Solve: 14m2-12m = 0
m=2 and m=76
m=2 and m=0
m=14 and m=12
m=0 and m=6/7
x3 - 343
30x3+15x2-18x-9
4p³+8p²+3p+6
Even Multiplicities have which of the following effects on the x-axis?
touches and bounces back
wiggle
crosses the x-axis
y = x(x - 6)(x + 5)
y = (x + 2)(x - 7)3
f(x)= x3(x + 3)2(x – 5)
For each function, determine the real zeros and state the multiplicity of any repeated zeros.
{0 mult. 3, 5, 2}
{−2 mult. 3, 3, 1}
{0 mult. 3, 3, 2}
{2 mult. 3, 3, 3}
For each function, determine the real zeros and state the multiplicity of any repeated zeros.
{0 mult. 3}
{0, 3, 1}
{0, −2, −1}
{−2, 3, 1}
f(x) = (x+2)(x-3)2(x-4)
Which choice best describes the zeros?
-2, 3 (multiplicity 2), 4
-2 (multiplicity 2), 3, 4
2, -3 (multiplicity 2), -4
2 (multiplicity 2), -3, -4
Zeros: – 5(multiplicity of 3), 9(multiplicity of 2), – 2, 4.
y = 9(x + 2)(x - 7)3
List the zeros for this function.
f(x) = x4(x+3)2(x - 2)
Find and select each real zero and its multiplicity
Zeros: – 5(multiplicity of 3), 9(multiplicity of 2), – 2, 4.
Even Multiplicities have which of the following effects on the x-axis?
Cross the x-axis
touches and bounces back
Zeros: – 5(multiplicity of 3), 9(multiplicity of 2), – 2, 4 Degree: 7
f(x)= x3(x + 3)2(x – 5)
If the graph of a function crosses the x-axis, what does that mean about the multiplicity of that zero?
Even
Odd
None
y = (x + 2)(x - 7)3
The degree of a polynomial determines...
the maximum number of x-intercepts
the number of turning points
if the end behavior is up or down
the y-intercept
Find and select each real zero and its multiplicity
Find the zeros.
(x-5)(x+6)=0
{5,5 }
{ -5,-5 }
{ -5,-6 }
{5,-6 }
Find the zeros.
(x + 2)(x - 3) = 0
{ 2, 3 }
{ -2, -3 }
{ 2, 3 }
{ -2, 3 }
Find the zeros.
(2x - 1)(x + 4) = 0
{ 1/2, -4 }
{ 1/2, 4 }
{ 2, -4 }
{ -2, 4 }
0=x(x - 6)
Find the zeros.
5(x+12)(x-12) = 0
{5,12,-12}
{-12, 12}
{0,12,-12}
{12}
Find the zeros.
8x(2x + 4)(x - 6)
x = - 2, 6, - 8
x = 2, 6, 0
x = - 2, 6, 0
x = - 8, 4, 6
Solve by grouping.
12x(x + 2) + 2x + 4
(12x + 2x)(x + 6)
(12x + 2)(x + 2)
14x + 6
(12x + 1)(x + 2)
Which of the equations is equivalent to:
4x(x - 5) + 6(x - 5) = 0
(4x + 6)(x - 5) = 0
(4x + 6)(x + 5)2 = 0
4x(6)(x -5) = 0
Select the two numbers that add to 10 and multiply to 21.
7
6
3
4
Select the two numbers that add to 5 and multiply to 4.
1
4
2
3
Select the two numbers that add to - 4 and multiply to -32.
-8
-1
-3
4
Select the two numbers that add to -7 and multiply to 12.
-3
3
4
-4
Factor by grouping
x3 - 4x2 -4x + 16
(x+4)(x+2)
(x-4)(x2 -4)
(x+4)(x2 -4)
(x-4)(x-2)
63x4 - 7x2 + 28x
4p³+8p²+3p+6
x³+7x²-2x-14
x+9x2+12x+27
x+3
x+9
x-3
x-9
x−8x2−13x+40
x-8
x-5
x+8
x+5
x+4x2−7x−44
x-7
x+4
x-11
x+7
x−6x2+x−42
x+6
x+8
x-6
x+7
2x+12x2+9x+4
x+4
x-4
2x+1
2x+4
(4x2 - 24x + 35) / (2x - 5)
2x - 7
2x - 12
2x + 12
2x + 7
(4x4−8x3−3x2+7x−2)÷(2x−1)
Use long division to evaluate
2x3−3x2−3x+2
2x3+3x2+3x+2
2x3−3x2−3x−2
2x3+2
Yes, (x-2) is a factor. There is a remainder.
No, (x-2) is not a factor. The remainder is zero.
Yes, (x-2) is a factor. The remainder is zero.
No, (x-2) is not a factor. There is a remainder.
(3x - 4x3 + 6x4 + 1) / (x + 3)
3 0 -4 6 1
6 -4 3 1 0
6 -4 0 3 1
-6 4 0 -3 -1
What is the proper way to write the answer for the following problem?
2x3-x2-25x+12
2x4-x3-25x2-12x+0
2x3-x2-25x-12
2x4-x3-25x2-12x-0
Synthetic Division only uses the ____________ of a polynomial to divide.
Terms
Numbers (coefficients)
Variables
Numbers and letters
Cam divided (x4 + 3x2 - 4x - 2) by factor of (x-2) using synthetic division. His work is shown above. Which best describes his mistake?
Cam wrote the remainder incorrectly.
Cam did not use a zero place holder for the x3 term.
Cam added instead of subtracting the rows.
Cam should have used -2 as his division since the factor was x-2.
Find the zeros of the polynomial given one factor. Use synthetic division.
X= 3,4,5
x=-3,-4,-5
x=-3,4,5
x= 3, -4, -5
(x - 5) is one factor.
f(x)= x5 - 3x3 + x
f(x)= x3(x + 3)2(x – 5)
Classify this polynomial by its degree and number of terms: 4x3
Cubic monomial
Linear binomial
Cubic binomial
6th degree (sextic) monomial
7x3 - 11x2 + 8x - 5
How many terms are in this polynomial?
2x3 - 8x2 + 3x - 7
7
1
4
2
Classify by number of terms:
5x2 – 6x + 3
Monomial
Binomial
Trinomial
4-Term Polynomial
Classify this polynomial by its degree and number of terms: 4x5
Linear monomial
Quadratic polynomial
Cubic Monomial
Quintic monomial
Simplify into Standard Form:
4x2−5x+10+2x2 +12x −3
6x2+7x +8
6x2+7x +7
11x2+7
7
What is the Degree of the Polynomial?
5x3 - 6x + 1
Linear
Quadratic
Cubic
Quartic
Put the polynomial in standard form.
7x - 12x2 + 8x + 5x2
−7x2+15x
7x2+15x
17x2+15
32x4
12 - 3x3 - 10x - x2
12 - 3x3 - 10x - x2
Classify this polynomial by its degree and number of terms: 6x5 + 2x -11
Quintic polynomial
Quintic trinomial
Quartic binomial
Simplify into Standard Form:
4x + 8x3 −11x +9
8x3−7x +9
8x3
8x3+15x +9
35x5
Simplify into Standard Form and Classify:
5x + 10 − 8x +12
−3x + 12
Linear Binomial
−3x + 22
Linear Binomial
−13x +22
Linear Binomial
37x
Linear Monomial
Simplify into Standard Form and Classify:
25x2 + 3x − 13x2 −3x
12x
Linear Monomial
12x2
Quadratic Monomial
12x2 +6x
Quadratic Binomial
15x2+6x −12 Quadratic Trinomial
Classify this polynomial by its degree and number of terms: 5x3 + 6x
Classify this polynomial by its degree and number of terms: 3x4
Cubic monomial
Quartic monomial
Cubic polynomial
Quadratic monomial
Classify this polynomial by its degree and number of terms: 3x4 - 5x + 1
Cubic monomial
Quartic monomial
Cubic polynomial
Quartic trinomial
Simplify into Standard Form and Classify:
x2−8x3+3x2−9
−8x3+4x2+9 Cubic Trinomial
8x3+4x2+9
Cubic Tirnomial
4x3
Cubic Monomial
4x4−8x3+9 Quintic Trinomial
Classify this polynomial by its degree and number of terms: 3x
Linear monomial
Cubic monomial
f(x)=5x²+3x³-2x+1
What is the Degree of the Polynomial?
5x3 - 6x + 1
Linear
Quadratic
Cubic
Quartic
4x3 - 5x2 + 2x - 1
3x - 2
7x3 - 11x2 + 8x - 5
x³-7x²+3
6w2 - 9w3
6w2 - 9w3
-9w3 + 6w2
-9w3 + 6w2
-9w3 + 6w2
-9w3 + 6w2
-9w3 + 6w2
What is the name of the following function (5)
(a)
What is the name of the following function (x+4)
(a)
What is the name of the following function ( 4x2 )
(a)
What is the name of the following function ( 4x3−2x2+x )
(a)
What is the name of the following function ( 2x4+5x2 )
(a)
What is the name of the following function( −x5+4x2+2x+1 )
(a)
Simplify:
(2x2)3
8x5
8x6
6x6
(3x2 - 2x) - (-2x2 + 3x)
How many roots are shown in the picture?
0
1
2
3
How many zeroes are shown in the graph?
1
2
3
4
Which root has a multiplicity of 2?
-1
2
4
-4
Use the graph to determine the solutions.
x = -1 and x = -3
x = 1 and x = -3
x = 1 and x = 3
x = -1 and x = 3
What are the x- intercepts?
(0,0) and (-4,0)
(0,0) and ( 4,0)
(0,0) and ( 2, -2)
(0, 4) and (0, 0)
How many zeros does this equation have?
y=x(x−2)(2x+1)(x−4)(x+7)
4
5
3
2
What is the factor of the equation y= 3x3−6x2+3x
(a)
