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Simplifying
3x2 + 36 = 40
Reorder the terms:
36 + 3x2 = 40
Solving
36 + 3x2 = 40
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-36' to each side of the equation.
36 + -36 + 3x2 = 40 + -36
Combine like terms: 36 + -36 = 0
0 + 3x2 = 40 + -36
3x2 = 40 + -36
Combine like terms: 40 + -36 = 4
3x2 = 4
Divide each side by '3'.
x2 = 1.333333333
Simplifying
x2 = 1.333333333
Take the square root of each side:
x = {-1.154700538, 1.154700538}
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