What is factor n^2+n-20 ?

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

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factor n^2+n-20

factor

n^{2} + n - 20

(n - 4) (n + 5)

Solution steps

n^{2} + n - 20

Break the expression into groups

= (n^{2} - 4 n) + (5 n - 20)

Factor out

n

from

n^{2} - 4 n : n (n - 4)

Factor out

5

from

5 n - 20 : 5 (n - 4)

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

Factor out common term

n - 4

= (n - 4) (n + 5)

- \frac{1}{3} \leq \frac{2 x}{3} - 3 \leq \frac{2}{7}

2 x^{2} - 13 x = - 15

14 x^{3} - 7 x^{2} - 35 x

\frac{x}{x - 2} < 2

24 x^{2} - 46 x = 18