W11D4 Factoring Review

What is the GCF? 5x²+20x

• 5
• x
• 5x
• 20x

What is the GCF of 18 and 24?

• 3

• 6

• 8

• 9

When factoring a quadratic in standard form, we find two numbers that ADD to B and multiply to _____.

• AC

• B

• C

• BC

What is the GCF of 18k and 15k³

• 3k²
• 3k³
• 3k
• 5k

What should you do first in solving this equation?
x² + 6x - 13 = 3

• Get factored form
• Write down: a=1, b=6, c=-13
• Make it equal 0 by subtracting 3 on each side
• Type it all in a calculator.

To solve a quadratic by graphing is to find where the curve crosses the x-axis. We call these the ___. Select all that apply.

• zeros

• x-intercepts

• solutions

• y-intercept

• (x+1)(x-2)

• (x-1)(x-2)

• (x+1)(x+2)

• (x-1)(x+2)

Factor d² - 10d + 25

• (d + 5) (d - 5)
• (d - 15) (d + 10)
• (d + 5) (d - 20)
• (d - 5) (d - 5)

Solve using the Zero-Product Property.

(x + 4)(x − 3) = 0

• x = 4 and x = −3

• x = 2 and x = 1

• x = −4 and x = 3

• x = −2 and x = 1

Factor x² + 7x + 12

• (x + 2)(x + 10)
• (x + 3)(x + 4)
• (x + 4)(x + 5)
• (x + 4)(x + 6)