What is factor 40x^2-39x-40 ?

The solution to factor 40x^2-39x-40 is (8x+5)(5x-8)

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factor 40x^2-39x-40

factor

40 x^{2} - 39 x - 40

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

Solution steps

40 x^{2} - 39 x - 40

Break the expression into groups

= (40 x^{2} + 25 x) + (- 64 x - 40)

Factor out

5 x

from

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

Factor out

- 8

from

- 64 x - 40 : - 8 (8 x + 5)

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

Factor out common term

8 x + 5

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

(x - 2) (x + 5) \leq 0

∣ x ∣ \leq 15

\frac{( ( 2 x + 1 ) ( 3 - x ) )}{( x ^{2} + 6 x + 8 ) ( x ^{2} + 1 )} \leq 0

k^{4} + k^{3} - k^{2}

\frac{3 ^{4}}{3 ^{- 2}}

What is factor 40x^2-39x-40 ?
The solution to factor 40x^2-39x-40 is (8x+5)(5x-8)