What is the first step in factoring the polynomial x^4 + 8x^2 - 9?

Factoring Higher Degree Polynomials and Equations

Interactive Video
•
Mathematics
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8th - 12th Grade
•
Hard

Amelia Wright
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Replace x^2 with a variable
Use the quadratic formula
Expand the polynomial
Divide by the greatest common factor
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which two numbers multiply to -9 and add to 8 in the polynomial a^2 + 8a - 9?
3 and -3
4 and -2
9 and -1
6 and -1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the factored form of x^2 - 1?
(x + 2)(x - 2)
(x - 1)^2
(x + 1)^2
(x + 1)(x - 1)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the polynomial x^4 - 5x^2 - 36, what are the two numbers that multiply to -36 and add to -5?
2 and -18
3 and -12
4 and -9
6 and -6
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the factored form of x^2 - 9?
(x + 3)(x - 3)
(x + 1)(x - 1)
(x + 2)(x - 2)
(x + 4)(x - 4)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the value of b if b^3 = 8?
2
4
1
3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the factored form of x^3 + 8 using the sum of cubes technique?
(x + 3)(x^2 + 3x + 9)
(x + 3)(x^2 - 3x + 9)
(x + 2)(x^2 + 2x + 4)
(x + 2)(x^2 - 2x + 4)
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