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Step-2

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.	\$ (x^2 + 4x + 1) + (−x^2 − 1) \$
2	Group like terms	\$ (x^2 − x^2) + 4x + (1-1) \$
3	After Subtraction	\$ 4x \$
4	Answer	C = \$ 4x \$

Steps

Problem

Solution

Find the sum or difference of polynomials.

\$ (x^2 + 4x + 1) + (−x^2 − 1) \$

Group like terms

\$ (x^2 − x^2) + 4x + (1-1) \$

After Subtraction

\$ 4x \$

Answer

C = \$ 4x \$