What is factor 9x^2-9x-28 ?

The solution to factor 9x^2-9x-28 is (3x+4)(3x-7)

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factor 9x^2-9x-28

factor

9 x^{2} - 9 x - 28

(3 x + 4) (3 x - 7)

Solution steps

9 x^{2} - 9 x - 28

Break the expression into groups

= (9 x^{2} + 12 x) + (- 21 x - 28)

Factor out

3 x

from

9 x^{2} + 12 x : 3 x (3 x + 4)

Factor out

- 7

from

- 21 x - 28 : - 7 (3 x + 4)

= 3 x (3 x + 4) - 7 (3 x + 4)

Factor out common term

3 x + 4

= (3 x + 4) (3 x - 7)

3 x^{2} + 13 x - 30 = 0

\frac{( 5 - i )}{( 3 + 2 i )}

\frac{2 x ^{3} y ^{4} z ^{7}}{x ^{2} y ^{5} z ^{10}}

2 (b - 4) > - 6

1 + 4 (- 2 w + 1) \geq - 4 w + 2 + 6