What is factor y^2-2y-8 ?

The solution to factor y^2-2y-8 is (y+2)(y-4)

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factor y^2-2y-8

factor

y^{2} - 2 y - 8

(y + 2) (y - 4)

Solution steps

y^{2} - 2 y - 8

Break the expression into groups

= (y^{2} + 2 y) + (- 4 y - 8)

Factor out

y

from

y^{2} + 2 y : y (y + 2)

Factor out

- 4

from

- 4 y - 8 : - 4 (y + 2)

= y (y + 2) - 4 (y + 2)

Factor out common term

y + 2

= (y + 2) (y - 4)

- \frac{8}{5} + \frac{9}{5}

\frac{3 ^{- 2} - 3 ^{2}}{3 ^{2}}

(d - 2)^{2}

- \frac{2}{3} (\frac{1}{2}) + 4

(7 + 4 i)^{2}