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Step-5

Title: Find the sum or difference of polynomials.

Grade: 7-b Lesson: S4-L9

Explanation: Hello Students, time to practice and review the steps for the problem.

Lesson Steps

Steps	Problem	Solution
1	Find the sum or difference of polynomials.	\$ (2x^3 − 5) − (−8x^2 − 5x) \$
2	Arrange the terms in Descending order	\$ 2x^3 - (-8x^2) - (-5x) − 5 \$
3	After Simplification	\$ 2x^3 + 8x^2 + 5x − 5\$
4	Answer	A = \$ 2x^3 + 8x^2 + 5x − 5 \$

Steps

Problem

Solution

Find the sum or difference of polynomials.

\$ (2x^3 − 5) − (−8x^2 − 5x) \$

Arrange the terms in Descending order

\$ 2x^3 - (-8x^2) - (-5x) − 5 \$

After Simplification

\$ 2x^3 + 8x^2 + 5x − 5\$

Answer

A = \$ 2x^3 + 8x^2 + 5x − 5 \$