What is factor x^2-12x-28 ?

The solution to factor x^2-12x-28 is (x+2)(x-14)

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factor x^2-12x-28

factor

x^{2} - 12 x - 28

(x + 2) (x - 14)

Solution steps

x^{2} - 12 x - 28

Break the expression into groups

= (x^{2} + 2 x) + (- 14 x - 28)

Factor out

x

from

x^{2} + 2 x : x (x + 2)

Factor out

- 14

from

- 14 x - 28 : - 14 (x + 2)

= x (x + 2) - 14 (x + 2)

Factor out common term

x + 2

= (x + 2) (x - 14)

3 x^{2} + 12 x + 81 = 15

2 x = x + 1

- \frac{( 2 ) ^{5}}{5} + \frac{13 ( 2 ) ^{3}}{3} - 36 (2)

3 lo g_{3} (2) - lo g_{3} (72)

\frac{1}{5} - \frac{2}{3} + 1