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

The solution to factor 7x^2-2x-9 is (x+1)(7x-9)

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factor 7x^2-2x-9

factor

7 x^{2} - 2 x - 9

(x + 1) (7 x - 9)

Solution steps

7 x^{2} - 2 x - 9

Break the expression into groups

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

Factor out

7 x

from

7 x^{2} + 7 x : 7 x (x + 1)

Factor out

- 9

from

- 9 x - 9 : - 9 (x + 1)

= 7 x (x + 1) - 9 (x + 1)

Factor out common term

x + 1

= (x + 1) (7 x - 9)

7 \frac{1}{2} - 1 \frac{2}{5} + \frac{9}{10}

x^{5} - 16 x^{3}

\frac{- 7}{5 x} + \frac{3}{2 x}

\frac{x ^{2} + 8 x + 15}{3 x + 9}

\frac{4}{5} + \frac{5}{4}