(5y^2-2y-1)(y+4)=

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Solution for (5y^2-2y-1)(y+4)= equation: 


Simplifying
(5y2 + -2y + -1)(y + 4) = 0

Reorder the terms:
(-1 + -2y + 5y2)(y + 4) = 0

Reorder the terms:
(-1 + -2y + 5y2)(4 + y) = 0

Multiply (-1 + -2y + 5y2) * (4 + y)
(-1(4 + y) + -2y * (4 + y) + 5y2 * (4 + y)) = 0
((4 * -1 + y * -1) + -2y * (4 + y) + 5y2 * (4 + y)) = 0
((-4 + -1y) + -2y * (4 + y) + 5y2 * (4 + y)) = 0
(-4 + -1y + (4 * -2y + y * -2y) + 5y2 * (4 + y)) = 0
(-4 + -1y + (-8y + -2y2) + 5y2 * (4 + y)) = 0
(-4 + -1y + -8y + -2y2 + (4 * 5y2 + y * 5y2)) = 0
(-4 + -1y + -8y + -2y2 + (20y2 + 5y3)) = 0

Combine like terms: -1y + -8y = -9y
(-4 + -9y + -2y2 + 20y2 + 5y3) = 0

Combine like terms: -2y2 + 20y2 = 18y2
(-4 + -9y + 18y2 + 5y3) = 0

Solving
-4 + -9y + 18y2 + 5y3 = 0

Solving for variable 'y'.

The solution to this equation could not be determined.

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