What is factor 7x^2+18x-9 ?

The solution to factor 7x^2+18x-9 is (7x-3)(x+3)

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factor 7x^2+18x-9

factor

7 x^{2} + 18 x - 9

(7 x - 3) (x + 3)

Solution steps

7 x^{2} + 18 x - 9

Break the expression into groups

= (7 x^{2} - 3 x) + (21 x - 9)

Factor out

x

from

7 x^{2} - 3 x : x (7 x - 3)

Factor out

3

from

21 x - 9 : 3 (7 x - 3)

= x (7 x - 3) + 3 (7 x - 3)

Factor out common term

7 x - 3

= (7 x - 3) (x + 3)

2 (x - 5) - 6 = - 18

12 \leq 6 + v \leq 15

(x - 8 i) (x + 8 i)

\frac{\frac{16}{21}}{\frac{4}{21}}

x^{2} - 6 x + 9 = 100