What is factor 9a^2-16b^2 ?

The solution to factor 9a^2-16b^2 is (3a+4b)(3a-4b)

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factor 9a^2-16b^2

factor

9 a^{2} - 16 b^{2}

(3 a + 4 b) (3 a - 4 b)

Solution steps

9 a^{2} - 16 b^{2}

9 a^{2} = (3 a)^{2}

16 b^{2} = (4 b)^{2}

= (3 a)^{2} - (4 b)^{2}

Apply Difference of Two Squares Formula:

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

(3 a)^{2} - (4 b)^{2} = (3 a + 4 b) (3 a - 4 b)

= (3 a + 4 b) (3 a - 4 b)

4 x^{2} - 12 x = - 9

x^{2} + 7 x - 18

\frac{1}{x + 1} > 2

\frac{3}{8} - \frac{1}{4}

\frac{1}{2} \cdot \frac{1}{2} \cdot \frac{1}{2} \cdot \frac{1}{2} \cdot \frac{1}{2}