4y(5y-7x)+4(7x+8x)=

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Solution for 4y(5y-7x)+4(7x+8x)= equation: 


Simplifying
4y(5y + -7x) + 4(7x + 8x) = 0

Reorder the terms:
4y(-7x + 5y) + 4(7x + 8x) = 0
(-7x * 4y + 5y * 4y) + 4(7x + 8x) = 0
(-28xy + 20y2) + 4(7x + 8x) = 0

Combine like terms: 7x + 8x = 15x
-28xy + 20y2 + 4(15x) = 0

Remove parenthesis around (15x)
-28xy + 20y2 + 4 * 15x = 0

Multiply 4 * 15
-28xy + 20y2 + 60x = 0

Reorder the terms:
60x + -28xy + 20y2 = 0

Solving
60x + -28xy + 20y2 = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-20y2' to each side of the equation.
60x + -28xy + 20y2 + -20y2 = 0 + -20y2

Combine like terms: 20y2 + -20y2 = 0
60x + -28xy + 0 = 0 + -20y2
60x + -28xy = 0 + -20y2
Remove the zero:
60x + -28xy = -20y2

Combine like terms: -20y2 + 20y2 = 0
60x + -28xy + 20y2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(15x + -7xy + 5y2) = 0

Ignore the factor 4.

Subproblem 1
Set the factor '(15x + -7xy + 5y2)' equal to zero and attempt to solve:

Simplifying
15x + -7xy + 5y2 = 0

Solving
15x + -7xy + 5y2 = 0

Move all terms containing x to the left, all other terms to the right.

Add '-5y2' to each side of the equation.
15x + -7xy + 5y2 + -5y2 = 0 + -5y2

Combine like terms: 5y2 + -5y2 = 0
15x + -7xy + 0 = 0 + -5y2
15x + -7xy = 0 + -5y2
Remove the zero:
15x + -7xy = -5y2

The solution to this equation could not be determined.

This subproblem is being ignored because a solution could not be determined.

The solution to this equation could not be determined.

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