Quiz Discussion

Title: Simplify the expression

Grade: 7-a Lesson: S3-L8

Explanation: Let us discuss a few questions on this topic and review the answers to every question.

Quiz: Discussion in Class

Problem Id Problem Options

Steps 1

Simplify the expression
\$ (3x^2 + 4x) - (12x + 5x^2) \$

A) \$ -2x(x - 8) \$

B) \$ -2x(x + 4) \$

C) \$ 2x(-x + 4) \$

D) \$ 2x(x - 4) \$

Steps 2

Simplify the expression
\$ (4x^4 + 2x) - (2x - 5x^4) \$

A) \$ 9x^3 \$

B) \$ -5x^3 \$

C) \$ x^4 \$

D) \$ 9x^4 \$

Steps 3

Simplify the expression
\$ (9x^3 + 3x^2) - (-4x^2 + 4x^3) \$

A) \$ x^2(5x+7) \$

B) \$ x^2(5x-7) \$

C) \$ x(5x+7) \$

D) \$ x^2(x+7) \$

Steps 4

Simplify the expression
\$ (2x^5 - 4x^2) - (-3x^2 - 6x) \$ +j

A) \$ x(2x^4+x+6) \$

B) \$ x(2x^4-x-6) \$

C) \$ x(2x^4+x-6) \$

D) \$ x(2x^4-x+6) \$

Steps 5

Simplify the expression
\$ (4x^4 - 3x^3) - (5x^2 - 7x) \$

A) \$ x(4x^3 + 3x^2 + 5x - 7) \$

B) \$ x(4x^3 - 3x^2 + 5x + 7) \$

C) \$ x(4x^3 - 3x^2 - 5x + 7) \$

D) \$ x(4x^3 - 3x^2 - 5x - 7) \$


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