Polynomials and Linear Factors

x + 2x² + 3x³ 
is a ____

• quadratic trinomial
• cubic trinomial
• quartic trinomial
• quintic trinomial

Give the correct linear factors of:
f(x)=x⁴+5x²-36

• (x+2)(x-2)(x+3i)(x-3i)
• (x²-4)(x²+9)
• (x+3)(x-3)(x+2i)(x-2i)
• (x²⁺4)(x²-9)

Find the polynomial that the degree of 3 and has zeros: x = 3, -1, 2

• (x-3)(x+1)(x-2)
• (x+3)(x-1)(x+2)
• Don't count this one because I need to study more and retake it.

What are the zeros of the function?

• 4,1
• 3,1,-2,-5
• -3, -1, 2, 5
• -2,4

What does it mean to "find the zeros"?

• Finding where the graph crosses the x-axis
• Finding where the graph crosses the y-axis
• Finding the very bottom of the graph.
• Finding the very top of the graph.

What are the
zeros of the polynomial
y = (x + 4)(x + 1)(x - 3)?

• -4, -1, 3
• 3, -3, 4, 1
• 4, 1, -3
• 3, -4, -1, 3

Which function is graphed?

• (x - 4)(x + 2)(x - 8)=0
• (x - 4)(x - 2)(x + 8)=0
• (x - 4)(x + 2)(x + 8)=0
• (x + 4)(x + 2)(x + 8)=0

Find the zeros.

• x = 0 and 4
• x = 0 and -4
• x = 0
• x = -4

What are the zeros (x-intercepts)?

• x = 2,-2
• x = 2,-2,0
• x = 2,0
• x = -4,-2,2,0

Solve by factoring:  2x³+ 7x² + 6x = 0

• x=0, x= 3/2 and x = 2
• x=0, x = -3/2 and x = -2
• x=0, x = 6 and x = 7
• x=2, x = -6 and x = -7