How do you multiply $(5n+6) (5n-5)$ ?

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Answer 1 · 2015-07-08T02:15:26

Use the FOIL method to multiply two binomials.

The FOIL method shows the order in which the terms of the two binomials are to be multiplied.

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$(5n+6)(5n-5)$ =

$(5n*5n)+(5n*-5)+(6*5n)+(6*-5)$ =

$25n^2-25n+30n-30$

Combine like terms.

$25n^2+6n-30$

How do you multiply (5n+6) (5n-5)(5n+6) (5n-5)?