What is factor y^2-4y-5 ?

The solution to factor y^2-4y-5 is (y+1)(y-5)

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factor y^2-4y-5

factor

y^{2} - 4 y - 5

(y + 1) (y - 5)

Solution steps

y^{2} - 4 y - 5

Break the expression into groups

= (y^{2} + y) + (- 5 y - 5)

Factor out

y

from

y^{2} + y : y (y + 1)

Factor out

- 5

from

- 5 y - 5 : - 5 (y + 1)

= y (y + 1) - 5 (y + 1)

Factor out common term

y + 1

= (y + 1) (y - 5)

(+ 7) + (+ 8)

3^{2} + 4^{2}

3. 2^{2}

\frac{11}{64}