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Popular >

factor 25-81x^2

Solution

factor

25 - 81 x^{2}

Solution

(5 + 9 x) (5 - 9 x)

Solution steps

25 - 81 x^{2}

Apply exponent rules

= 5^{2} - (9 x)^{2}

Apply Difference of Two Squares Formula:

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

5^{2} - (9 x)^{2} = (5 + 9 x) (5 - 9 x)

= (5 + 9 x) (5 - 9 x)

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Frequently Asked Questions (FAQ)

What is factor 25-81x^2 ?
The solution to factor 25-81x^2 is (5+9x)(5-9x)