4[5-4x(7x+y)]=

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


Simplifying
4[5 + -4x(7x + y)] = 0
4[5 + (7x * -4x + y * -4x)] = 0

Reorder the terms:
4[5 + (-4xy + -28x2)] = 0
4[5 + (-4xy + -28x2)] = 0
[5 * 4 + -4xy * 4 + -28x2 * 4] = 0
[20 + -16xy + -112x2] = 0

Solving
20 + -16xy + -112x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '4'.
4(5 + -4xy + -28x2) = 0

Ignore the factor 4.

Subproblem 1
Set the factor '(5 + -4xy + -28x2)' equal to zero and attempt to solve:

Simplifying
5 + -4xy + -28x2 = 0

Solving
5 + -4xy + -28x2 = 0

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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