Equivalence and Simplification of Expressions

−x² + 2 − 1 + 6x² − 4x²

• x ²  - 1

• x² + 1

• 3x² + 1

• x ² + 3

Expand and simplify 4(5a + c) + 3(2a – 3c)

• 26a + 5c

• 26a – 13c

• 31ac

• 26a – 5c

Which expression is equivalent to 2(x + 3)?

• 8x

• 2x + 6

• 2x - 6

• 3 + 2x

Which expression is equivalent to 6(2x - 4)?

• 12x - 24

• 12x - 4

• 8x - 12

Which expression is equivalent to 6y + 21y + y?

• 27y + 1

• 28y

• 3(7y + 2y)

What algebraic expression is described by the phrase "5 less than y"?

• y - 5

• 5 - y

• 5y - 1

Which expression is equivalent to 4x + 5 + 7x + 2?

• 18x

• 11x + 7

• 4(x + 2) + 7

• 7x + 2

Which expression is equivalent to a(bc)?

• (ab)c

• a + b + c

• ab + c

• a + bc

What algebraic expression describes the phrase "three times the sum of 7 and r"?

• 7r + 3

• 3(7r)

• 3(7 + r)

Mark all of the equivalent expressions for 4x + 8

• 3x + 6 + x + 2

• 2(2x + 4)

• 8 + 4x

• 2(x + 4) + 2x

• 2(x + 2)