(y-4)(2y+1)(y-7)=0

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Solution for (y-4)(2y+1)(y-7)=0 equation:


Simplifying
(y + -4)(2y + 1)(y + -7) = 0

Reorder the terms:
(-4 + y)(2y + 1)(y + -7) = 0

Reorder the terms:
(-4 + y)(1 + 2y)(y + -7) = 0

Reorder the terms:
(-4 + y)(1 + 2y)(-7 + y) = 0

Multiply (-4 + y) * (1 + 2y)
(-4(1 + 2y) + y(1 + 2y))(-7 + y) = 0
((1 * -4 + 2y * -4) + y(1 + 2y))(-7 + y) = 0
((-4 + -8y) + y(1 + 2y))(-7 + y) = 0
(-4 + -8y + (1 * y + 2y * y))(-7 + y) = 0
(-4 + -8y + (1y + 2y2))(-7 + y) = 0

Combine like terms: -8y + 1y = -7y
(-4 + -7y + 2y2)(-7 + y) = 0

Multiply (-4 + -7y + 2y2) * (-7 + y)
(-4(-7 + y) + -7y * (-7 + y) + 2y2 * (-7 + y)) = 0
((-7 * -4 + y * -4) + -7y * (-7 + y) + 2y2 * (-7 + y)) = 0
((28 + -4y) + -7y * (-7 + y) + 2y2 * (-7 + y)) = 0
(28 + -4y + (-7 * -7y + y * -7y) + 2y2 * (-7 + y)) = 0
(28 + -4y + (49y + -7y2) + 2y2 * (-7 + y)) = 0
(28 + -4y + 49y + -7y2 + (-7 * 2y2 + y * 2y2)) = 0
(28 + -4y + 49y + -7y2 + (-14y2 + 2y3)) = 0

Combine like terms: -4y + 49y = 45y
(28 + 45y + -7y2 + -14y2 + 2y3) = 0

Combine like terms: -7y2 + -14y2 = -21y2
(28 + 45y + -21y2 + 2y3) = 0

Solving
28 + 45y + -21y2 + 2y3 = 0

Solving for variable 'y'.

The solution to this equation could not be determined.

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