Solve the product (a+7)(a-11)

 Exercise

$\left(a+7\right)\left(a-11\right)$

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Multiply the single term $a-11$ by each term of the polynomial $\left(a+7\right)$

$a\left(a-11\right)+7\left(a-11\right)$

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Multiply the single term $a$ by each term of the polynomial $\left(a-11\right)$

$a\cdot a-11a+7\left(a-11\right)$

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When multiplying two powers that have the same base ($a$), you can add the exponents

$a^2-11a+7\left(a-11\right)$

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Multiply the single term $7$ by each term of the polynomial $\left(a-11\right)$

$a^2-11a+7a-77$

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Combining like terms $-11a$ and $7a$

$a^2-4a-77$

$a^2-4a-77$

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