What is factor y^2-y-42 ?

The solution to factor y^2-y-42 is (y+6)(y-7)

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factor y^2-y-42

factor

y^{2} - y - 42

(y + 6) (y - 7)

Solution steps

y^{2} - y - 42

Break the expression into groups

= (y^{2} + 6 y) + (- 7 y - 42)

Factor out

y

from

y^{2} + 6 y : y (y + 6)

Factor out

- 7

from

- 7 y - 42 : - 7 (y + 6)

= y (y + 6) - 7 (y + 6)

Factor out common term

y + 6

= (y + 6) (y - 7)

(\frac{1}{3})^{- 1}

4 x - x^{2} = 0

5 x^{2} - 6 x = 8

2 x^{2} + x = 55

0 = - 16 t^{2} + 16 t + 192