(5y^2+6y-7)(3y^2-6y-4)=

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Solution for (5y^2+6y-7)(3y^2-6y-4)= equation: 


Simplifying
(5y2 + 6y + -7)(3y2 + -6y + -4) = 0

Reorder the terms:
(-7 + 6y + 5y2)(3y2 + -6y + -4) = 0

Reorder the terms:
(-7 + 6y + 5y2)(-4 + -6y + 3y2) = 0

Multiply (-7 + 6y + 5y2) * (-4 + -6y + 3y2)
(-7(-4 + -6y + 3y2) + 6y * (-4 + -6y + 3y2) + 5y2 * (-4 + -6y + 3y2)) = 0
((-4 * -7 + -6y * -7 + 3y2 * -7) + 6y * (-4 + -6y + 3y2) + 5y2 * (-4 + -6y + 3y2)) = 0
((28 + 42y + -21y2) + 6y * (-4 + -6y + 3y2) + 5y2 * (-4 + -6y + 3y2)) = 0
(28 + 42y + -21y2 + (-4 * 6y + -6y * 6y + 3y2 * 6y) + 5y2 * (-4 + -6y + 3y2)) = 0
(28 + 42y + -21y2 + (-24y + -36y2 + 18y3) + 5y2 * (-4 + -6y + 3y2)) = 0
(28 + 42y + -21y2 + -24y + -36y2 + 18y3 + (-4 * 5y2 + -6y * 5y2 + 3y2 * 5y2)) = 0
(28 + 42y + -21y2 + -24y + -36y2 + 18y3 + (-20y2 + -30y3 + 15y4)) = 0

Reorder the terms:
(28 + 42y + -24y + -21y2 + -36y2 + -20y2 + 18y3 + -30y3 + 15y4) = 0

Combine like terms: 42y + -24y = 18y
(28 + 18y + -21y2 + -36y2 + -20y2 + 18y3 + -30y3 + 15y4) = 0

Combine like terms: -21y2 + -36y2 = -57y2
(28 + 18y + -57y2 + -20y2 + 18y3 + -30y3 + 15y4) = 0

Combine like terms: -57y2 + -20y2 = -77y2
(28 + 18y + -77y2 + 18y3 + -30y3 + 15y4) = 0

Combine like terms: 18y3 + -30y3 = -12y3
(28 + 18y + -77y2 + -12y3 + 15y4) = 0

Solving
28 + 18y + -77y2 + -12y3 + 15y4 = 0

Solving for variable 'y'.

The solution to this equation could not be determined.

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