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Find the product. Simplify your answer. $\newline$ $7(a^2 - 1)$

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Multiply a polynomial by a monomial

Full solution

Q. Find the product. Simplify your answer.

\newline

7(a^2 - 1)

Distribute $7$ : Distribute the $7$ to both terms inside the parentheses. $\newline$ $7(a^2 - 1) = 7 \times a^2 - 7 \times 1$
Multiply terms: Multiply $7$ by each term. $\newline$ $7 \times a^2 = 7a^2$ $\newline$ $7 \times 1 = 7$
Write simplified expression: Write down the simplified expression. $\newline$ $7(a^2 - 1) = 7a^2 - 7$

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