CRM 3.4 - Equivalent Algebraic Expressions

Students were working on the math problem −21𝑦³ − 9𝑦⁴. Which student(s) wrote an equivalent expression to the original problem?

Lucia wrote -3y³ ( 7 + 3y ) | Faye wrote 3y³ ( -3y - 7 )

• Lucia

• Faye

• Both Lucia and Faye

An expression is shown.

^{4.2z ( 2.5z² )}

Enter a number and monomial to represent the product.

( 2 1⁄2 y ) ( 8 1⁄2 - 3 4⁄5 y)

What is the product of the expression?

What is the product of ( w - 5 ) and ( -2w )

• -2w^2 - 10w^2

• 2w + 10w^2

• -2w^2 + 10w

• -2w^2 - 10w

The expression 4r ( 3 - 8r ) is equivalent to -32r² + 12r

• True

• False

Tags

CCSS.8.EE.A.1

The expression 1⁄4 z ( 10 + 16z ) is equivalent to 2.5z² + 4z

• True

• False

The expression 1⁄4 z ( 10 + 16z ) is equivalent to 2.5z² + 4z

• True

• False

Tags

CCSS.8.F.A.2

The expression -1⁄2 z (-8z) is equivalent to 4z²

• True

• False

Tags

CCSS.8.EE.A.1

21x²y⁴ + 6x³y

• x^3y^4

• 6xy^2

• 3

• 3x^2y

What is the simplified form of the expression 3x(4x - 5) + 2x?

• 12x^2 + 2x

• 12x^2 - 13x

• 12x^2 - 3x

• 12x^2 - 5x

Tags

CCSS.8.EE.A.1