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3 years ago

Multiply (x+3)(x-3) A) x^2 +6x+9 B) x^2 -9 C) x^2 + 6x-9 D) x^2 - 6x +9

Mathematics

2 answers:

kotegsom [21]3 years ago

8 0

Hi!

We can remove the parentheses.

x+3·x-3

Group together like terms.

x·x+3·-3

x²-9

The answer is B) x²-9

Hope this helps! :)

-Peredhel

Nimfa-mama [501]3 years ago

3 0

(x+3)(x-3)

=x^2 + 3x -3x - 9

=x^2 - 9

Answer

B) x^2 -9

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