Factoring help!

0

731

1

b²+ b - 20

Answer= (b+_)(b+_)

Thanks!

Guest Jun 6, 2017

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Best Answer

+9465

+1

b² + b - 20

What two numbers add up to 1 and mulitply to - 20 ? → -4 and +5

-4 + 5 = 1

-4 * 5 = -20

So.....

b² + b - 20 = (b - 4)(b + 5)

hectictar Jun 6, 2017

1⁺⁰ Answers

+9465

+1

Best Answer

b² + b - 20

What two numbers add up to 1 and mulitply to - 20 ? → -4 and +5

-4 + 5 = 1

-4 * 5 = -20

So.....

b² + b - 20 = (b - 4)(b + 5)

hectictar Jun 6, 2017

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