What is factor x^2-8x-20 ?

The solution to factor x^2-8x-20 is (x+2)(x-10)

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factor x^2-8x-20

factor

x^{2} - 8 x - 20

(x + 2) (x - 10)

Solution steps

x^{2} - 8 x - 20

Break the expression into groups

= (x^{2} + 2 x) + (- 10 x - 20)

Factor out

x

from

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

Factor out

- 10

from

- 10 x - 20 : - 10 (x + 2)

= x (x + 2) - 10 (x + 2)

Factor out common term

x + 2

= (x + 2) (x - 10)

3 (x + 8)^{2} = 36

\frac{x}{3} - \frac{3}{4} = \frac{2 x + 3}{12}

5 (3 x + 1) + 11 = 16

∣ 4 x - 1 ∣ > 9

16 y^{2} - 25