What is factor x^2-8xy-9y^2 ?

The solution to factor x^2-8xy-9y^2 is (x+y)(x-9y)

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factor x^2-8xy-9y^2

factor

x^{2} - 8 x y - 9 y^{2}

(x + y) (x - 9 y)

Solution steps

x^{2} - 8 x y - 9 y^{2}

Break the expression into groups

= (x^{2} + x y) + (- 9 x y - 9 y^{2})

Factor out

x

from

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

Factor out

- 9 y

from

- 9 x y - 9 y^{2} : - 9 y (x + y)

= x (x + y) - 9 y (x + y)

Factor out common term

x + y

= (x + y) (x - 9 y)

- 2 > \frac{3 ( b + 4 )}{- 2}

2 y + 4 > - 6 or 4 y + 2 \geq - 6

1 2^{2} + 9^{2}

- x^{2} + 8 x = 4 x + 3

0 = x^{2} + x - 4

What is factor x^2-8xy-9y^2 ?
The solution to factor x^2-8xy-9y^2 is (x+y)(x-9y)