What is factor r^2-6r-55 ?

The solution to factor r^2-6r-55 is (r+5)(r-11)

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factor r^2-6r-55

factor

r^{2} - 6 r - 55

(r + 5) (r - 11)

Solution steps

r^{2} - 6 r - 55

Break the expression into groups

= (r^{2} + 5 r) + (- 11 r - 55)

Factor out

r

from

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

Factor out

- 11

from

- 11 r - 55 : - 11 (r + 5)

= r (r + 5) - 11 (r + 5)

Factor out common term

r + 5

= (r + 5) (r - 11)

x^{2} + 2 < 4 - 2

28 x + 3 = 26 x + 19

lo g_{243} (\frac{1}{81})

4 x^{3} + 26 x^{2} + 28 x

- - 10