What is factor n^2-4n-45 ?

The solution to factor n^2-4n-45 is (n+5)(n-9)

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factor n^2-4n-45

factor

n^{2} - 4 n - 45

(n + 5) (n - 9)

Solution steps

n^{2} - 4 n - 45

Break the expression into groups

= (n^{2} + 5 n) + (- 9 n - 45)

Factor out

n

from

n^{2} + 5 n : n (n + 5)

Factor out

- 9

from

- 9 n - 45 : - 9 (n + 5)

= n (n + 5) - 9 (n + 5)

Factor out common term

n + 5

= (n + 5) (n - 9)

2 x^{2} + 17 x + 36

\frac{2}{5} + \frac{1}{2}

\frac{27}{3}

\frac{b ^{3}}{b ^{2}}

467 = - 0.5 x^{2} + 36 x - 145