What is factor 20r^2-17r-63 ?

The solution to factor 20r^2-17r-63 is (5r+7)(4r-9)

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factor 20r^2-17r-63

factor

20 r^{2} - 17 r - 63

(5 r + 7) (4 r - 9)

Solution steps

20 r^{2} - 17 r - 63

Break the expression into groups

= (20 r^{2} + 28 r) + (- 45 r - 63)

Factor out

4 r

from

20 r^{2} + 28 r : 4 r (5 r + 7)

Factor out

- 9

from

- 45 r - 63 : - 9 (5 r + 7)

= 4 r (5 r + 7) - 9 (5 r + 7)

Factor out common term

5 r + 7

= (5 r + 7) (4 r - 9)

- 2 x^{2} + 6 x + 16 = x + 4

2 - 4 i

3 x - 1 = 3 x + 1

2 = - 3 x^{2} + 1

\frac{6}{i}

What is factor 20r^2-17r-63 ?
The solution to factor 20r^2-17r-63 is (5r+7)(4r-9)