What is factor a^2+7ab-18b^2 ?

The solution to factor a^2+7ab-18b^2 is (a-2b)(a+9b)

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factor a^2+7ab-18b^2

factor

a^{2} + 7 ab - 18 b^{2}

(a - 2 b) (a + 9 b)

Solution steps

a^{2} + 7 ab - 18 b^{2}

Break the expression into groups

= (a^{2} - 2 ab) + (9 ab - 18 b^{2})

Factor out

a

from

a^{2} - 2 ab : a (a - 2 b)

Factor out

9 b

from

9 ab - 18 b^{2} : 9 b (a - 2 b)

= a (a - 2 b) + 9 b (a - 2 b)

Factor out common term

a - 2 b

= (a - 2 b) (a + 9 b)

(x + 4) (7 - x) (x - 5) \geq 0

n - (- 2) = - 14

64 a^{3} - 1

x^{2} - 22 x + 121 = 0

x - \frac{2}{5} = \frac{3}{10}

What is factor a^2+7ab-18b^2 ?
The solution to factor a^2+7ab-18b^2 is (a-2b)(a+9b)