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Popular >

factor 16b^2-81

Solution

factor

16 b^{2} - 81

Solution

(4 b + 9) (4 b - 9)

Solution steps

16 b^{2} - 81

Apply exponent rules

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

Apply Difference of Two Squares Formula:

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

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

= (4 b + 9) (4 b - 9)

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Frequently Asked Questions (FAQ)

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