What is factor y^2-2y-15 ?

The solution to factor y^2-2y-15 is (y+3)(y-5)

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factor y^2-2y-15

factor

y^{2} - 2 y - 15

(y + 3) (y - 5)

Solution steps

y^{2} - 2 y - 15

Break the expression into groups

= (y^{2} + 3 y) + (- 5 y - 15)

Factor out

y

from

y^{2} + 3 y : y (y + 3)

Factor out

- 5

from

- 5 y - 15 : - 5 (y + 3)

= y (y + 3) - 5 (y + 3)

Factor out common term

y + 3

= (y + 3) (y - 5)

\frac{1 0 ^{16}}{3125000}

- 4 x + 7 > x - 13

2 x + 3 \geq 7 or 2 x + 9 > 11

5 x + 12 < 2

- 81 = 6 u + 7 u - 16