Lesson Example Discussion Quiz: Class Homework |
Quiz Discussion |
Title: Find the sum or difference of polynomials. |
Grade: 7-b Lesson: S4-L9 |
Explanation: Let us discuss a few questions on this topic and review the answers to every question. |
Quiz: Discussion in Class
| Problem Id | Question | Problem | Options |
|---|---|---|---|
Steps 1 |
Find the sum or difference of polynomials. |
\$(x^3 + 8x + 3) − (−x^3 + 2x^2 − 5) \$ |
A) \$ 2x^3 - 2x^2 + 8x + 8 \$ B) \$ 2x^3 + 2x^2 + 8x - 2 \$ C) \$ 2x^3 + 2x^2 + 8x + 8 \$ D) \$ 2x^3 - 2x^2 + 8x - 8 \$ |
Steps 2 |
Find the sum or difference of polynomials. |
\$ (x^2 + 4x + 1) + (−x^2 − 1) \$ |
A) \$ −x^2 − 1 \$ B) \$ -4x \$ C) \$ 4x \$ D) \$ −x^2 + 4x − 1 \$ |
Steps 3 |
Find the sum or difference of polynomials. |
\$ (2x^3 + 5x^2 − x) + (x^3 − 10x^2 + 5x) \$ |
A) \$ x^3 + 5x^2 − x \$ B) \$ 3x^3 - 5x^2 + 4x \$ C) \$ x^3 - 5x^2 + 4x \$ D) \$ 3x^3 + 5x^2 + 4x \$ |
Steps 4 |
Find the sum or difference of polynomials. |
\$ (x^3 + 9x) − (4x^3 − x) \$ |
A) \$ 3x^3 - 8x \$ B) \$ -5x^3 + 10x \$ C) \$ 5x^3 + 8x \$ D) \$ -3x^3 + 10x \$ |
Steps 5 |
Find the sum or difference of polynomials. |
\$ (2x^3 − 5) − (−8x^2 − 5x) \$ |
A) \$ 2x^3 + 8x^2 + 5x − 5 \$ B) \$ 2x^3 - 8x^2 - 5x − 5 \$ C) \$ 2x^3 - 8x^2 + 5x + 5 \$ D) \$ 2x^3 + 8x^2 - 5x + 5 \$ |
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