What is factor r^2+r-90 ?

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

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factor r^2+r-90

factor

r^{2} + r - 90

(r - 9) (r + 10)

Solution steps

r^{2} + r - 90

Break the expression into groups

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

Factor out

r

from

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

Factor out

10

from

10 r - 90 : 10 (r - 9)

= r (r - 9) + 10 (r - 9)

Factor out common term

r - 9

= (r - 9) (r + 10)

- \frac{18}{4}

((\frac{1}{2})^{3})^{5}

x^{3} - 2 x^{2} - 24 x

\frac{( 11 - 8 ) ^{3}}{- 9} + 2 (4)^{0}

245 - t^{2} = 0