Algebra Concepts Review

Expand and simplify.

2(r + 11)

• 2r + 11

• 2r + 13

• 2r + 22

• 24r

• 7g - 2

• g - 2

• 7g - 6

• g - 6

• 9g (2h - 5m)

• 3g(6h - 15m)

• 9(2h - 5)

• 3(6h - 16m)

Identify the slope and y-intercept of:
y = 1/5x + 5

• slope: 1/6   y-intercept:  4 

• slope: 1/5   y-intercept:  5 

• slope: 5/1   y-intercept:  5 

• slope: 1   y-intercept:  5 

Expand (x + 5)²

• x² + 25

• x² + 10x + 25

• x² + 10 x + 10

• x² + 10

Find the product:
(3x + 2)(2x + 4)

• 6x² + 16x + 8

• 5x² +11x + 6

• 5x² + 16x + 6

• 6x² + 11x + 8

Multiply:

(y + 9)²

• y² +18y + 81

• y² + 81

• y + 9

• y² +18y + 18

7x - 4 = 3 + 8x

• x = 7

• x = -7

• x = 2/7

• x = 11

5(2x -1) = -5+ 10x

• x = 5

• x = 0

• all real numbers

• no solution