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Simplifying
4b2 + -2 = 118
Reorder the terms:
-2 + 4b2 = 118
Solving
-2 + 4b2 = 118
Solving for variable 'b'.
Move all terms containing b to the left, all other terms to the right.
Add '2' to each side of the equation.
-2 + 2 + 4b2 = 118 + 2
Combine like terms: -2 + 2 = 0
0 + 4b2 = 118 + 2
4b2 = 118 + 2
Combine like terms: 118 + 2 = 120
4b2 = 120
Divide each side by '4'.
b2 = 30
Simplifying
b2 = 30
Take the square root of each side:
b = {-5.477225575, 5.477225575}
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