Evaluate Equivalent Expressions

Three times a number increased by nine

• 3h-9

• 3(h-9)

• 3(h+9)

• 3h+9

Is 3x + 12 equivalent to 3(x + 3) + 3?

• Yes

• No

• There's no way to know

Select all the options below that are equivalent to 15y + 60.

• 3(5y + 20)

• 15(y + 4)

• -15(-y - 4)

• 15(y + 60)

• 15y(y + 4)

Which is equivalent to -(9x + 4 - y)?

• -9x + 4 - y

• -9x + 36x + 9xy

• -9x - 36x + 9xy

• -9x - 36x - 9xy

• -9x - 4 + y

Is 3x + 9 equivalent to 3(x + 3) + 6?

• No

• Yes

• There's no way to know

Which expression is equivalent to (x + 2)(x - 4)?

• x² + 2x - 8

• x² - 2x - 8

• x² + 4x - 8

• x² - 4x - 8

Which is equivalent to 2⁴

• 8

• 20

• 16

• 12

2(c - 8)

• 2c - 16

• 2c + 16

• 2c - 8

• c - 16

8(x + 5)

• 8x + 13

• 8x + 5

• 8x + 40

• 13x

True or false:

2a = a + a

• True

• False