(6x+4y)(-3x-y)=

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Solution for (6x+4y)(-3x-y)= equation: 


Simplifying
(6x + 4y)(-3x + -1y) = 0

Multiply (6x + 4y) * (-3x + -1y)
(6x * (-3x + -1y) + 4y * (-3x + -1y)) = 0
((-3x * 6x + -1y * 6x) + 4y * (-3x + -1y)) = 0

Reorder the terms:
((-6xy + -18x2) + 4y * (-3x + -1y)) = 0
((-6xy + -18x2) + 4y * (-3x + -1y)) = 0
(-6xy + -18x2 + (-3x * 4y + -1y * 4y)) = 0
(-6xy + -18x2 + (-12xy + -4y2)) = 0

Reorder the terms:
(-6xy + -12xy + -18x2 + -4y2) = 0

Combine like terms: -6xy + -12xy = -18xy
(-18xy + -18x2 + -4y2) = 0

Solving
-18xy + -18x2 + -4y2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '-2'.
-2(9xy + 9x2 + 2y2) = 0

Factor a trinomial.
-2((3x + y)(3x + 2y)) = 0

Ignore the factor -2.

Subproblem 1
Set the factor '(3x + y)' equal to zero and attempt to solve:

Simplifying
3x + y = 0

Solving
3x + y = 0

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

Add '-1y' to each side of the equation.
3x + y + -1y = 0 + -1y

Combine like terms: y + -1y = 0
3x + 0 = 0 + -1y
3x = 0 + -1y
Remove the zero:
3x = -1y

Divide each side by '3'.
x = -0.3333333333y

Simplifying
x = -0.3333333333y

Subproblem 2
Set the factor '(3x + 2y)' equal to zero and attempt to solve:

Simplifying
3x + 2y = 0

Solving
3x + 2y = 0

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

Add '-2y' to each side of the equation.
3x + 2y + -2y = 0 + -2y

Combine like terms: 2y + -2y = 0
3x + 0 = 0 + -2y
3x = 0 + -2y
Remove the zero:
3x = -2y

Divide each side by '3'.
x = -0.6666666667y

Simplifying
x = -0.6666666667y
Solution
x = {-0.3333333333y, -0.6666666667y}

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