What is factor x^2-4x-5 ?

The solution to factor x^2-4x-5 is (x+1)(x-5)

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factor x^2-4x-5

factor

x^{2} - 4 x - 5

(x + 1) (x - 5)

Solution steps

x^{2} - 4 x - 5

Break the expression into groups

= (x^{2} + x) + (- 5 x - 5)

Factor out

x

from

x^{2} + x : x (x + 1)

Factor out

- 5

from

- 5 x - 5 : - 5 (x + 1)

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

Factor out common term

x + 1

= (x + 1) (x - 5)

y^{2} + 10 y + 25

- 3 < x \leq 4

2 (2 w + 9) = 50

18 - - 25

\frac{\frac{1}{2}}{\frac{1}{4}}