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Simplifying
3x2 = 12
Solving
3x2 = 12
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Divide each side by '3'.
x2 = 4
Simplifying
x2 = 4
Take the square root of each side:
x = {-2, 2}
| 4x^2=11 | | 7x^8+3x^4-10=0 | | 7x^8+3x^4+10=0 | | 7x^4=-7 | | 4x^2+28=0 | | 2x^2=14 | | x^2+13=20 | | 5x^4=16 | | 9x^5=3 | | x^2+4=8 |