Distributing a negative

By Renee Duncan

Distributing a negative

​Simplify

-5(2x +9)​

Multiple Choice

Select the correct simplification of -5(2x+9)

• -10x-45

• -10x+9

• -10x+45

​Simplify

-2.5 (4k - 2)​

Multiple Choice

Select the correct answer for -2.5 (4k - 2)

• -10k + 5

• 10k-5

• -10k-5

Multiple Choice

Select the correct answer $$-\ \frac{1}{2}\left(6t\ +2\right)$$  

• -3t-1

• -3t+1

• -3t+2

​Simplify

-10 (-4 - 2j) ​

Multiple Choice

Select the correct answer for -10(-4 - 2j)

• 40-2j

• 40+20j

• -40+20j

​Simplify

-3(-p + 7)

Multiple Choice

Select the correct answer for -3(-p + 7)

• 3p-7

• -3p-7

• 3p-21

​Simplify

-2(6d -11)

​

Multiple Choice

Select the correct answer for -2(6d-11)

• -12-11d

• -12d+22

• -12d-22

Multiple Choice

Select the correct expression for the perimeter of the rectangle

• 2(x+6) + 2(3x-2)

• 2(x+3) +6

• 4(x+6)

​Distribute

2(x+6) + 2(3x-2) ​

Multiple Choice

Select the correct answer for the distribution step in 2(x+6) + 2(3x-2)

• 2x+6-2x+4

• 2x+12+6x-4

• 2x+12-6x+2

​Combine like terms

2x+12+6x-4​

Multiple Choice

Select the correct simplified form of 2x+12+6x-4

• 8x+8

• 16x

• 20x-4

Multiple Choice

Which expression would correctly represent how to find the distance from point A to B?

• (10x-5) + 9x

• (10x-5) - (2x+7)

​Distribute the negative

-(2x+7)​

Multiple Choice

Distribute the negative -(2x+7)

• -2x-7

• -2x+7

• 2x+7

​Combine like terms

10x-5-2x-7​

Multiple Choice

​Combine like terms

10x-5-2x-7​

• 8x-12

• 12x+3

• -10x+7

Open Ended

Summarize today's lesson, make sure to include what happens when distributing a negative