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Popular >

factor u^2-9

Solution

factor

u^{2} - 9

Solution

(u + 3) (u - 3)

Solution steps

u^{2} - 9

Rewrite

9

as

3^{2}

= u^{2} - 3^{2}

Apply Difference of Two Squares Formula:

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

u^{2} - 3^{2} = (u + 3) (u - 3)

= (u + 3) (u - 3)

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Frequently Asked Questions (FAQ)

What is factor u^2-9 ?
The solution to factor u^2-9 is (u+3)(u-3)