3 years ago

The product (x + 3y)(3x – y) =

Mathematics

1 answer:

Digiron [165]3 years ago

4 0

Answer: 3x²-3y²+8xy

Step-by-step explanation:

When you multiply two factors, you want to use the FOIL method.

First

Outer

Inner

Last

(x+3y)(3x-y) [distribute by FOIL]

3x²-xy+9xy-3y² [combine like terms]

3x²+8xy-3y² [rewrite]

3x²-3y²+8xy

Now, we know the product is 3x²-3y²+8xy.

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