What is factor x^2-9x+4x-36 ?

The solution to factor x^2-9x+4x-36 is (x+4)(x-9)

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factor x^2-9x+4x-36

factor

x^{2} - 9 x + 4 x - 36

(x + 4) (x - 9)

Solution steps

x^{2} - 9 x + 4 x - 36

Add similar elements:

- 9 x + 4 x = - 5 x

= x^{2} - 5 x - 36

Break the expression into groups

= (x^{2} + 4 x) + (- 9 x - 36)

Factor out

x

from

x^{2} + 4 x : x (x + 4)

Factor out

- 9

from

- 9 x - 36 : - 9 (x + 4)

= x (x + 4) - 9 (x + 4)

Factor out common term

x + 4

= (x + 4) (x - 9)

- 18 < 9 x

(3 x y z^{2}) (x^{2}) (\frac{1}{5} x^{2} y)

∣ 3 x - 1 ∣ + 3 \geq 9

\frac{\frac{π}{2}}{\frac{1}{2}}

- 9 n + 1 > 91