(3x+7)(-2x-4)=y

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Solution for (3x+7)(-2x-4)=y equation: 


Simplifying
(3x + 7)(-2x + -4) = y

Reorder the terms:
(7 + 3x)(-2x + -4) = y

Reorder the terms:
(7 + 3x)(-4 + -2x) = y

Multiply (7 + 3x) * (-4 + -2x)
(7(-4 + -2x) + 3x * (-4 + -2x)) = y
((-4 * 7 + -2x * 7) + 3x * (-4 + -2x)) = y
((-28 + -14x) + 3x * (-4 + -2x)) = y
(-28 + -14x + (-4 * 3x + -2x * 3x)) = y
(-28 + -14x + (-12x + -6x2)) = y

Combine like terms: -14x + -12x = -26x
(-28 + -26x + -6x2) = y

Solving
-28 + -26x + -6x2 = y

Solving for variable 'x'.

Combine like terms: y + -1y = 0
-28 + -26x + -6x2 + -1y = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(28 + 26x + 6x2 + y) = 0

Ignore the factor -1.

Subproblem 1
Set the factor '(28 + 26x + 6x2 + y)' equal to zero and attempt to solve:

Simplifying
28 + 26x + 6x2 + y = 0

Solving
28 + 26x + 6x2 + y = 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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