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

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

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factor a^2+7a-18

factor

a^{2} + 7 a - 18

(a - 2) (a + 9)

Solution steps

a^{2} + 7 a - 18

Break the expression into groups

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

Factor out

a

from

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

Factor out

9

from

9 a - 18 : 9 (a - 2)

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

Factor out common term

a - 2

= (a - 2) (a + 9)

75 + 15 x \leq 140

- 3 (x + 2) \leq 5 x + 3

(x - 2)^{2} = 6

x^{2} - 4 = 3

3 m^{2} + 14 m + 8