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Simplifying
2b2 + 11 = 15
Reorder the terms:
11 + 2b2 = 15
Solving
11 + 2b2 = 15
Solving for variable 'b'.
Move all terms containing b to the left, all other terms to the right.
Add '-11' to each side of the equation.
11 + -11 + 2b2 = 15 + -11
Combine like terms: 11 + -11 = 0
0 + 2b2 = 15 + -11
2b2 = 15 + -11
Combine like terms: 15 + -11 = 4
2b2 = 4
Divide each side by '2'.
b2 = 2
Simplifying
b2 = 2
Take the square root of each side:
b = {-1.414213562, 1.414213562}
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