Quiz about Factoring Quadratics

Question 1

Find the factors of x²-81

Accepted Answer

(x-9)(x+9)

Answer

(x+9)(x+9)

Answer

(x-9)(x-9)

Answer

Can't be factored

Question 2

Find the factors of 5x²+20x+20

Accepted Answer

5(x+2)(x+2)

Answer

5(x-2)(x-2)

Answer

5(x+2)(x-2)

Answer

(5x+2)(x+2)

Question 3

Factor: 3x² + 9x - 12

Accepted Answer

3(x + 4)(x - 1)

Answer

3(x - 4)(x + 1)

Answer

(3x - 12)(x + 1)

Answer

(x + 4)(3x - 1)

Question 4

Factor:
18b²-9b³

Accepted Answer

9b2(2-b)

Answer

9b²(18-9b)

Answer

9b²(18-9b²)

Answer

b2(2-b2)

Question 5

What are the factors of x²+3x-40

Accepted Answer

(x+8)(x-5)

Answer

(x+10)(x-4)

Answer

(x+20)(x-2)

Answer

(x+1)(x-3)

Question 6

Factor
3a² + 4a + 1

Accepted Answer

(3a+1)(a+1)

Answer

(7a-10)(a-8)

Answer

Not factorable

Answer

(3a-1)(a-1)

Question 7

Factor:
4x²-16x-9

Accepted Answer

(2x-9)(2x+1)

Answer

(2x+9)(2x-1)

Answer

(4x-1)(x+9)

Answer

(x+1)(4x-9)

Question 8

Factor: 25x²- 9

Accepted Answer

(5x + 3)(5x - 3)

Answer

(x + 5)(x - 3)

Answer

(x - 3)(x + 5)

Answer

(5x + 3)(3x + 5)

Question 9

Find the factors of 100x²-64

Accepted Answer

(10x-8)(10x+8)

Answer

(x-10)(x+8)

Answer

(10x+8)(10x+8)

Answer

(10x-8)(10x-8)

Question 10

Factor
x² - 36

Accepted Answer

(x + 6)(x - 6)

Answer

(x + 9)(x - 4)

Answer

(x - 6)(x - 6)

Answer

(x - 9)(x + 4)

Question 11

Factor (hint...take out the greatest common factor first)
2c² + 2c - 84

Accepted Answer

2(c+7)(c-6)

Answer

(c-6)(2c+14)

Answer

(c+7)(2c-12)

Answer

(c-4)(2c+21)

Question 12

Factor
n²-13n+40

Accepted Answer

(n-5)(n-8)

Answer

(n+5)(n-8)

Answer

(n-5)(n+8)

Answer

(n+6)(n+1)

Question 13

Factor
k² -2k - 24

Accepted Answer

(k+4)(k-6)

Answer

(k+4)(k+6)

Answer

(k+6)(k-1)

Answer

(k-4)(k+6)

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