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

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

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factor 7c^2-2c-9

factor

7 c^{2} - 2 c - 9

(c + 1) (7 c - 9)

Solution steps

7 c^{2} - 2 c - 9

Break the expression into groups

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

Factor out

7 c

from

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

Factor out

- 9

from

- 9 c - 9 : - 9 (c + 1)

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

Factor out common term

c + 1

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

\frac{π}{4} \cdot 6

\frac{x - 2}{x + 3} < \frac{x + 1}{x}

- 4 < 4 - 2 x \leq 8

6 a x^{2} - 3 a^{2} x + 3 a x

s + 5 \geq 6