How do you multiply (x-9)^{2}?

Frauffshiesiaf6s

Frauffshiesiaf6s

Answered question

2022-02-11

How do you multiply (x9)2?

Answer & Explanation

Justice Jacobson

Justice Jacobson

Beginner2022-02-12Added 17 answers

Explanation:
We know that
(ab)2=a22ab+b2
In the given question (x9)2
a=x and b=9. Substituting the values we obtain
(x9)2=x228x9+92
x218x+81
Result:
Alternate method.
=x218x+81
Hannah Escobar

Hannah Escobar

Beginner2022-02-13Added 9 answers

Explanation:
(x9)2
Remember the formula (a+b)2=a2+2ab+b2
In this case a=x, b=-9
And remember 92=99=81
Substitute the values:
We get:
x2+2(x)(9)+81
⇒=x218x+81

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