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Simplifying
6x2 + -72 + 30 = 0
Reorder the terms:
-72 + 30 + 6x2 = 0
Combine like terms: -72 + 30 = -42
-42 + 6x2 = 0
Solving
-42 + 6x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '42' to each side of the equation.
-42 + 42 + 6x2 = 0 + 42
Combine like terms: -42 + 42 = 0
0 + 6x2 = 0 + 42
6x2 = 0 + 42
Combine like terms: 0 + 42 = 42
6x2 = 42
Divide each side by '6'.
x2 = 7
Simplifying
x2 = 7
Take the square root of each side:
x = {-2.645751311, 2.645751311}
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