What is factor 4x^2-20x+9 ?

The solution to factor 4x^2-20x+9 is (2x-1)(2x-9)

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factor 4x^2-20x+9

factor

4 x^{2} - 20 x + 9

(2 x - 1) (2 x - 9)

Solution steps

4 x^{2} - 20 x + 9

Break the expression into groups

= (4 x^{2} - 2 x) + (- 18 x + 9)

Factor out

2 x

from

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

Factor out

- 9

from

- 18 x + 9 : - 9 (2 x - 1)

= 2 x (2 x - 1) - 9 (2 x - 1)

Factor out common term

2 x - 1

= (2 x - 1) (2 x - 9)

5 \cdot 4 \cdot 3

\frac{( - 0.999999 - ( - 1 ) )}{- 0.01 - 0}

0.01 x^{2} + 0.06 x - 0.05 = 0

2 x^{3} + 9 x^{2} + 13 x + 6

3 x^{2} - 36 x + 81