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Westkost [7]
2 years ago
5

6. Multiply: (x – 4)(x + 5)​

Mathematics
2 answers:
Elena-2011 [213]2 years ago
6 0

Answer:

x^2+x-20

Step-by-step explanation:

(x-4)(x+5)

=x^2-4x+5x-20

=x^2+x-20

Hope This Helped

Anvisha [2.4K]2 years ago
3 0

Answer:

x^2+x-20

Step-by-step explanation:

1) Use the FOIL method: (a+b)(c+d)=ac+ad+bc+bd.\\

x^2+5x-4x-20

2) Collect like terms.

x^2+(5x-4x)-20

3) Simplify.

x^2+x-20

<em>What is the FOIL method</em>

It stands for:

First, Outside, Inside, Last

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