What is factor n^2-19n+90 ?

The solution to factor n^2-19n+90 is (n-9)(n-10)

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factor n^2-19n+90

factor

n^{2} - 19 n + 90

(n - 9) (n - 10)

Solution steps

n^{2} - 19 n + 90

Break the expression into groups

= (n^{2} - 9 n) + (- 10 n + 90)

Factor out

n

from

n^{2} - 9 n : n (n - 9)

Factor out

- 10

from

- 10 n + 90 : - 10 (n - 9)

= n (n - 9) - 10 (n - 9)

Factor out common term

n - 9

= (n - 9) (n - 10)

\frac{2}{n} - \frac{1}{n + 1}

448

8 x^{3} - x^{2}

x^{2} - 16 = - 2 x - 1

40 - 3 x - x^{2}