3x(x+2y)=-21

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Solution for 3x(x+2y)=-21 equation: 


Simplifying
3x(x + 2y) = -21
(x * 3x + 2y * 3x) = -21

Reorder the terms:
(6xy + 3x2) = -21
(6xy + 3x2) = -21

Solving
6xy + 3x2 = -21

Solving for variable 'x'.

Reorder the terms:
21 + 6xy + 3x2 = -21 + 21

Combine like terms: -21 + 21 = 0
21 + 6xy + 3x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(7 + 2xy + x2) = 0

Ignore the factor 3.

Subproblem 1
Set the factor '(7 + 2xy + x2)' equal to zero and attempt to solve:

Simplifying
7 + 2xy + x2 = 0

Solving
7 + 2xy + x2 = 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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