What is factor 4x^2-8x-45 ?

The solution to factor 4x^2-8x-45 is (2x+5)(2x-9)

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factor 4x^2-8x-45

factor

4 x^{2} - 8 x - 45

(2 x + 5) (2 x - 9)

Solution steps

4 x^{2} - 8 x - 45

Break the expression into groups

= (4 x^{2} + 10 x) + (- 18 x - 45)

Factor out

2 x

from

4 x^{2} + 10 x : 2 x (2 x + 5)

Factor out

- 9

from

- 18 x - 45 : - 9 (2 x + 5)

= 2 x (2 x + 5) - 9 (2 x + 5)

Factor out common term

2 x + 5

= (2 x + 5) (2 x - 9)

4 x - 7 = 5 - 2 x

\frac{x}{5} = 6

\frac{ln ( 2 )}{0.2}

(\frac{1}{t})^{2}

x^{2} + 2 x - 36 = 12