3x^2+3=51

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Solution for 3x^2+3=51 equation: 


Simplifying
3x2 + 3 = 51

Reorder the terms:
3 + 3x2 = 51

Solving
3 + 3x2 = 51

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + 3x2 = 51 + -3

Combine like terms: 3 + -3 = 0
0 + 3x2 = 51 + -3
3x2 = 51 + -3

Combine like terms: 51 + -3 = 48
3x2 = 48

Divide each side by '3'.
x2 = 16

Simplifying
x2 = 16

Take the square root of each side:
x = {-4, 4}

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