(3y^2-9y+4)(4y+5)=

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Solution for (3y^2-9y+4)(4y+5)= equation: 


Simplifying
(3y2 + -9y + 4)(4y + 5) = 0

Reorder the terms:
(4 + -9y + 3y2)(4y + 5) = 0

Reorder the terms:
(4 + -9y + 3y2)(5 + 4y) = 0

Multiply (4 + -9y + 3y2) * (5 + 4y)
(4(5 + 4y) + -9y * (5 + 4y) + 3y2 * (5 + 4y)) = 0
((5 * 4 + 4y * 4) + -9y * (5 + 4y) + 3y2 * (5 + 4y)) = 0
((20 + 16y) + -9y * (5 + 4y) + 3y2 * (5 + 4y)) = 0
(20 + 16y + (5 * -9y + 4y * -9y) + 3y2 * (5 + 4y)) = 0
(20 + 16y + (-45y + -36y2) + 3y2 * (5 + 4y)) = 0
(20 + 16y + -45y + -36y2 + (5 * 3y2 + 4y * 3y2)) = 0
(20 + 16y + -45y + -36y2 + (15y2 + 12y3)) = 0

Combine like terms: 16y + -45y = -29y
(20 + -29y + -36y2 + 15y2 + 12y3) = 0

Combine like terms: -36y2 + 15y2 = -21y2
(20 + -29y + -21y2 + 12y3) = 0

Solving
20 + -29y + -21y2 + 12y3 = 0

Solving for variable 'y'.

The solution to this equation could not be determined.

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