Unit 2 Review

Simplify:

4m(2+7m)

• 4m + 28m

• 8m+28

Answer explanation

To simplify 4m(2+7m), distribute 4m: 4m*2 + 4m*7m = 8m + 28m^2. The correct choice is 8m + 28m^2.

Simplify:

-4(-4x+2)

• 16x - 8

• 16x + 8

• -16x - 8

• -16x + 8

Simplify:

4n(6n+9) + 6n

Simplify:

-9n + 9(10-8n)

• -81n + 9
• -81n + 90
• -9n + 90
• -9n + 90n

Solve the equation:

-6(4p-1)=198

Solve the Equation:

2x - 8(8x - 2) = 140

-(1 + 2x) = 9 - 4x

2 + 6x = -8x - 8(-4x - 7)

• v > -8
• v = -7
• v < -10

• v < -8

Solve the inequality:

5(-4 - 2b) < -6b +12

• b > -8
• b = -8
• b < -10
• b ≤ -6