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

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


Simplifying
(4x + 3y)(4x + y) = 0

Multiply (4x + 3y) * (4x + y)
(4x * (4x + y) + 3y * (4x + y)) = 0
((4x * 4x + y * 4x) + 3y * (4x + y)) = 0

Reorder the terms:
((4xy + 16x2) + 3y * (4x + y)) = 0
((4xy + 16x2) + 3y * (4x + y)) = 0
(4xy + 16x2 + (4x * 3y + y * 3y)) = 0
(4xy + 16x2 + (12xy + 3y2)) = 0

Reorder the terms:
(4xy + 12xy + 16x2 + 3y2) = 0

Combine like terms: 4xy + 12xy = 16xy
(16xy + 16x2 + 3y2) = 0

Solving
16xy + 16x2 + 3y2 = 0

Solving for variable 'x'.

Factor a trinomial.
(4x + y)(4x + 3y) = 0


Subproblem 1
Set the factor '(4x + y)' equal to zero and attempt to solve:

Simplifying
4x + y = 0

Solving
4x + y = 0

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

Add '-1y' to each side of the equation.
4x + y + -1y = 0 + -1y

Combine like terms: y + -1y = 0
4x + 0 = 0 + -1y
4x = 0 + -1y
Remove the zero:
4x = -1y

Divide each side by '4'.
x = -0.25y

Simplifying
x = -0.25y

Subproblem 2
Set the factor '(4x + 3y)' equal to zero and attempt to solve:

Simplifying
4x + 3y = 0

Solving
4x + 3y = 0

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

Add '-3y' to each side of the equation.
4x + 3y + -3y = 0 + -3y

Combine like terms: 3y + -3y = 0
4x + 0 = 0 + -3y
4x = 0 + -3y
Remove the zero:
4x = -3y

Divide each side by '4'.
x = -0.75y

Simplifying
x = -0.75y
Solution
x = {-0.25y, -0.75y}

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