What is factor 4x^2+8x-5 ?

The solution to factor 4x^2+8x-5 is (2x-1)(2x+5)

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factor 4x^2+8x-5

factor

4 x^{2} + 8 x - 5

(2 x - 1) (2 x + 5)

Solution steps

4 x^{2} + 8 x - 5

Break the expression into groups

= (4 x^{2} - 2 x) + (10 x - 5)

Factor out

2 x

from

4 x^{2} - 2 x : 2 x (2 x - 1)

Factor out

5

from

10 x - 5 : 5 (2 x - 1)

= 2 x (2 x - 1) + 5 (2 x - 1)

Factor out common term

2 x - 1

= (2 x - 1) (2 x + 5)

- x^{3} - 2 x^{2} + 15 x

8 \leq - 3 (4 x + 1) \leq 24

0.4 \cdot 2

lo g_{7} (1) = x

t^{2} - 7 t - 30