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Popular >

factor 81-16x^2

Solution

factor

81 - 16 x^{2}

Solution

(9 + 4 x) (9 - 4 x)

Solution steps

81 - 16 x^{2}

Apply exponent rules

= 9^{2} - (4 x)^{2}

Apply Difference of Two Squares Formula:

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

9^{2} - (4 x)^{2} = (9 + 4 x) (9 - 4 x)

= (9 + 4 x) (9 - 4 x)

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Frequently Asked Questions (FAQ)

What is factor 81-16x^2 ?
The solution to factor 81-16x^2 is (9+4x)(9-4x)