How do you multiply $(3x – 7)(5x + 6)$ ?

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Answer 1 · 2018-06-02T17:22:24

Multiplying this out gives us $15x^2-17x-42$

So let start by rewriting this thing out again.

$(3x-7)(5x+6)$

So we need to use the FOIL method to see what this will give us.

$15x^2+18x-35x-42$

So once you are finish using the FOIL method, combine the like terms. The final answer to this is:

$15x^2-17x-42$

Answer 2 · 2018-06-02T17:42:37

$15x^2 - 17x - 42$

To multiply the two binomials $(3x-7)(5x+6)$

We use the mnemonic FOIL

F - First terms $(3x)(5x)=15x^2$
O - Outer terms $(3x)(6) = 18x$
I - Inner terms $(-7)(5x) = -35x$
L - Last terms $(-7)(6) = -42$

Now combine the terms

$15x^2 + 18x - 35x - 42$

Add like terms

$15x^2 - 17x - 42$

How do you multiply (3x – 7)(5x + 6)(3x – 7)(5x + 6)?