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Stells [14]
3 years ago
13

Factor this polynomial completely. x^2-81

Mathematics
2 answers:
expeople1 [14]3 years ago
7 0

The answer to your question is (x+9)(x-9)

Step-by-step explanation:

Rewrite 81 as 92

x2−92

Since both terms are perfect squares, factor using the difference of squares formula, a2−b2=(a+b)(a−b)

where a=x and b=9

(x+9)(x−9)

Hope this helped you out:)

ikadub [295]3 years ago
4 0

Answer:

a=x and b=9

(x+9)(x−9)

Explanation:

Since both terms are perfect squares, factor using the difference of squares formula, a2−b2=(a+b)(a−b)

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Write a linear function f with f(5) = -1 and f(0) =-5.<br> f (x) =
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Answer:

f(x)=\frac{4}{5}x-5

Step-by-step explanation:

Solution is below as well as graph for proof

7 0
3 years ago
The quotient of a number and nine is less or equal to fifteen
dimulka [17.4K]

Remark

If you just want the way this would be written out the answer is

\dfrac{x}{9} \leq 15

Note

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vladimir1956 [14]

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Then

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2 years ago
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