3x^2+21+36=0

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Solution for 3x^2+21+36=0 equation:


Simplifying
3x2 + 21 + 36 = 0

Reorder the terms:
21 + 36 + 3x2 = 0

Combine like terms: 21 + 36 = 57
57 + 3x2 = 0

Solving
57 + 3x2 = 0

Solving for variable 'x'.

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

Add '-57' to each side of the equation.
57 + -57 + 3x2 = 0 + -57

Combine like terms: 57 + -57 = 0
0 + 3x2 = 0 + -57
3x2 = 0 + -57

Combine like terms: 0 + -57 = -57
3x2 = -57

Divide each side by '3'.
x2 = -19

Simplifying
x2 = -19

Reorder the terms:
19 + x2 = -19 + 19

Combine like terms: -19 + 19 = 0
19 + x2 = 0

The solution to this equation could not be determined.

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