8+x^2=3x^2

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Solution for 8+x^2=3x^2 equation: 


Simplifying
8 + x2 = 3x2

Solving
8 + x2 = 3x2

Solving for variable 'x'.

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

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

Combine like terms: x2 + -3x2 = -2x2
8 + -2x2 = 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
8 + -2x2 = 0

Add '-8' to each side of the equation.
8 + -8 + -2x2 = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -2x2 = 0 + -8
-2x2 = 0 + -8

Combine like terms: 0 + -8 = -8
-2x2 = -8

Divide each side by '-2'.
x2 = 4

Simplifying
x2 = 4

Take the square root of each side:
x = {-2, 2}

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