301 unit 2- Algebra

Which of the following is an expression?

• y = 4

• 2x + 4 = 10

• 2x + 2

• d = s x t

-4 + 6 =

• -10

• 10

• -2

• 2

• - 6 - 8 =

• 14

• 2

• -14

• -2

6 - 9 =

• 3

• -3

• 15

• -15

Simplify the following:

2a + 4b - 7a - 3b

• -5a + 7b

• 6a -10b

• -5a + b

• -5a + 7b

Expand the following:

5x(3x + 4)

• 15x + 20x

• 35x

• 15x² + 20

• 15x² + 20x

Expand and simplify:

(x + 3) (x + 9)

• x² + 27x + 27

• x² + 12x + 27

• x² + 12x + 36

• x² + 6x + 27

Expand and simplify:

(2x + 5) (3x - 6)

• 6x² + 3x - 30

• 6x² + 27x + 30

• 6x² + 27x - 30

• 6x² - 3x - 30

-4 x -3 =

• 12

• 16

• -12

• -16

Solve y + 6 = 3

• y = - 3

• y = 0

• y = 9

• y = -18