What is factor 9x^2+12x-5 ?

The solution to factor 9x^2+12x-5 is (3x-1)(3x+5)

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factor 9x^2+12x-5

factor

9 x^{2} + 12 x - 5

(3 x - 1) (3 x + 5)

Solution steps

9 x^{2} + 12 x - 5

Break the expression into groups

= (9 x^{2} - 3 x) + (15 x - 5)

Factor out

3 x

from

9 x^{2} - 3 x : 3 x (3 x - 1)

Factor out

5

from

15 x - 5 : 5 (3 x - 1)

= 3 x (3 x - 1) + 5 (3 x - 1)

Factor out common term

3 x - 1

= (3 x - 1) (3 x + 5)

x^{2} + 7 x - 27 = 0

- 3.1 < x < - 2.7

\frac{20 - 0}{2006 - 1994}

r^{2} - 13 r + 42 = 0