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Popular >

factor 81-p^2

Solution

factor

81 - p^{2}

Solution

(9 + p) (9 - p)

Solution steps

81 - p^{2}

Rewrite

81

as

9^{2}

= 9^{2} - p^{2}

Apply Difference of Two Squares Formula:

x^{2} - y^{2} = (x + y) (x - y)

9^{2} - p^{2} = (9 + p) (9 - p)

= (9 + p) (9 - p)

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Frequently Asked Questions (FAQ)

What is factor 81-p^2 ?
The solution to factor 81-p^2 is (9+p)(9-p)