What is factor 40x^2+7x-20 ?

The solution to factor 40x^2+7x-20 is (8x-5)(5x+4)

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factor 40x^2+7x-20

factor

40 x^{2} + 7 x - 20

(8 x - 5) (5 x + 4)

Solution steps

40 x^{2} + 7 x - 20

Break the expression into groups

= (40 x^{2} - 25 x) + (32 x - 20)

Factor out

5 x

from

40 x^{2} - 25 x : 5 x (8 x - 5)

Factor out

4

from

32 x - 20 : 4 (8 x - 5)

= 5 x (8 x - 5) + 4 (8 x - 5)

Factor out common term

8 x - 5

= (8 x - 5) (5 x + 4)

7 x = - 3

\frac{y}{x} - \frac{x}{y}

(- 343 x^{- 6})^{\frac{1}{3}}

6 r^{2} - r - 1

17 k - 8 = 37 k + 2