Quiz At Home

Title: Adding and subtracting polynomials

Grade: 8-b Lesson: S1-L1

Explanation: Hello Students, time to practice and review. Let us take next 10-15 minutes to solve the five problems using the Quiz Sheet. Then submit the quiz to get the score. This is a good exercise to check your understanding of the concepts.

Quiz: at Home

Problem Id Problem Options

1

Find the sum of \$ (−4x^3 − x + 1) + (2x^3 + 8x − 9) \$.

A) \$ -x^3 + 7x − 8 \$

B) \$ -2x^3 + 7x − 8 \$

C) \$ -2x^3 + 5x − 8 \$

D) \$ -x^3 + 2x − 9 \$

2

Simplify: \$ (5m^2 + 7m − 3) − (4m^2 − + 2m − 1) \$.

A) \$ m^2 + 6m − 2 \$

B) \$ m^2 + 9m − 1 \$

C) \$ m^2 + 9m − 2 \$

D) \$ 3m^2 + 2m − 7 \$

3

Add the polynomials \$ (a^2 − 2a − 6) + (6a^2 + a + 8) \$.

A) \$ 3a^2 − 2a + 1 \$

B) \$ 7a^2 − 3a + 1 \$

C) \$ 7a^2 − 2a + 2 \$

D) \$ 7a^2 − a + 2 \$

4

Find the difference \$ (−7h^3 − h^2 + 10) − (3h^2 + 2h − 2) \$.

A) \$ −7h^3 − 4h^2 − 2h + 12 \$

B) \$ −7h^3 − 3h^2 − 2h + 12 \$

C) \$ −2h^3 − 4h^2 − 2h + 12 \$

D) \$ −4h^3 − 2h^2 − h + 10 \$

5

Simplify: \$ (s^3 + 8s + 3) − (−s^3 + 2s^2 − 5) \$.

A) \$ 2s^3 − 2s^2 + 8s + 8 \$

B) \$ 2s^3 − s^2 + 8s + 8 \$

C) \$ 2s^3 − 2s^2 + 4s + 8 \$

D) \$ s^3 − 4s^2 + 6s + 8 \$

6

Add the polynomials \$3x^2 + 2x + 5\$ and \$4x^2 - x + 1\$.

A) \$7x^2 + x + 6\$

B) \$7x^2 + x - 6\$

C) \$7x^2 - 2x + 7\$

D) \$6x^2 + 2x + 7\$

7

Simplify: \$(3k^4 - 2k^3 + 3k - 1) + (-k^4 + 5k^2 - k + 6)\$.

A) \$2k^4 - 2k^3 + 5k^2 + 2k + 5\$

B) \$2k^3 - 2k^2 + 5k + k + 5\$

C) \$k^4 + 2k^3 + 5k^2 + 2k\$

D) \$2k^4 - 8k^3 + 4k^2 + 2k + 5\$

8

Subtract the polynomials \$2x^2 - 3x + 4\$ and \$5x^2 + x - 2\$.

A) \$3x^3 - 2x + 2\$

B) \$-3x^2 - 4x + 6\$

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

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

9

Find the sum of the polynomials \$3a^3 + a^2 - 2a + 7\$ and \$4a^3 - a^2 + a - 5\$.

A) \$6a^3 - a + 2\$

B) \$7a^3 - 2a + 9\$

C) \$7a^3 - a + 2\$

D) \$6a^3 - 7a + 2\$

10

Simplify the expression \$(3x^3 - 2x^2 + x - 4) + (2x^3 + x^2 - 5x + 6) - (x^3 - 3x^2 + 2x - 1)\$.

A) \$3x^3 + 2x^2 + 2x + 3\$

B) \$4x^3 + 2x^2 - 8x + 3\$

C) \$4x^3 + 2x^2 - 2x + 3\$

D) \$4x^3 + 2x^2 - 6x + 3\$


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