What is factor 20n^2-9n-20 ?

The solution to factor 20n^2-9n-20 is (5n+4)(4n-5)

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factor 20n^2-9n-20

factor

20 n^{2} - 9 n - 20

(5 n + 4) (4 n - 5)

Solution steps

20 n^{2} - 9 n - 20

Break the expression into groups

= (20 n^{2} + 16 n) + (- 25 n - 20)

Factor out

4 n

from

20 n^{2} + 16 n : 4 n (5 n + 4)

Factor out

- 5

from

- 25 n - 20 : - 5 (5 n + 4)

= 4 n (5 n + 4) - 5 (5 n + 4)

Factor out common term

5 n + 4

= (5 n + 4) (4 n - 5)

x y + x^{2} y^{2}

12 8^{2}

\frac{π}{2} + 4 π

(- 2) + (- 3)

[\frac{( 3 - \frac{1}{2} ) ( 1 + \frac{1}{4} )}{( 2 - \frac{2}{3} ) ( \frac{1}{2} + \frac{1}{3} )}]^{2}