Combining Like Terms REVIEW

Which of these are like terms in the following expression:
3x + 7 - 9x + 24y + 2x²

• 7, 24y

• 3x, 9x

• 3x, -9x

• 3x, -9x, 2x²

Simplify by combining like terms:
5a + 2b - 3a + 4

• 8a + 2b + 4

• 2a + 2b + 4

• 8ab

• 4ab + 4

Simplify by combining like terms:
4x² - 3x + 11 -2x

• 4x² - 5x + 11

• 11x + 11

• 16x² - 5x + 11

• 10x²

Which of these is the correct use of the distributive property for the following expression?
5(2x - 8)

• 10x - 8

• 10x + 40

• 7x - 3

• 10x - 40

Simplify the following expression by combining like terms:
3(2x - 4) + 6x - 1

• 12x - 13

• 12x - 5

• 11x - 2

• -x

Simplify the following expression by combining like terms:
x(3x + 4) + 2x

• 6x + 4

• 3x² + 6x

• 3x² + 2x + 4

• 9x²

-r -10r

• 11r

• -11r

• 9r

• -11

-6k + 7k=

• k

• -k

• 12k

• -12k

n -10 +9n -3=

• -3

• 9n-3

• n

• 10n -13

-4x - 10x

• -14

• 6x

• -6x

• -14x