3(x^2-5-51)=0

Solution for 3(x^2-5-51)=0 equation:

Simplifying
3(x2 + -5 + -51) = 0

Reorder the terms:
3(-5 + -51 + x2) = 0

Combine like terms: -5 + -51 = -56
3(-56 + x2) = 0
(-56 * 3 + x2 * 3) = 0
(-168 + 3x2) = 0

Solving
-168 + 3x2 = 0

Solving for variable 'x'.

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

Add '168' to each side of the equation.
-168 + 168 + 3x2 = 0 + 168

Combine like terms: -168 + 168 = 0
0 + 3x2 = 0 + 168
3x2 = 0 + 168

Combine like terms: 0 + 168 = 168
3x2 = 168

Divide each side by '3'.
x2 = 56

Simplifying
x2 = 56

Take the square root of each side:
x = {-7.483314774, 7.483314774}