Solve the product (y+7)(y-8)

 Exercise

$\left(y+7\right)\left(y-8\right)$

 

Multiply the single term $y-8$ by each term of the polynomial $\left(y+7\right)$

$y\left(y-8\right)+7\left(y-8\right)$

 

Multiply the single term $y$ by each term of the polynomial $\left(y-8\right)$

$y\cdot y-8y+7\left(y-8\right)$

 

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

$y^2-8y+7\left(y-8\right)$

 

Multiply the single term $7$ by each term of the polynomial $\left(y-8\right)$

$y^2-8y+7y-56$

 

Combining like terms $-8y$ and $7y$

$y^2-y-56$

$y^2-y-56$

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