0=b^2-3b+12

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Solution for 0=b^2-3b+12 equation:


Simplifying
0 = b2 + -3b + 12

Reorder the terms:
0 = 12 + -3b + b2

Solving
0 = 12 + -3b + b2

Solving for variable 'b'.

Combine like terms: 0 + -12 = -12
-12 + 3b + -1b2 = 12 + -3b + b2 + -12 + 3b + -1b2

Reorder the terms:
-12 + 3b + -1b2 = 12 + -12 + -3b + 3b + b2 + -1b2

Combine like terms: 12 + -12 = 0
-12 + 3b + -1b2 = 0 + -3b + 3b + b2 + -1b2
-12 + 3b + -1b2 = -3b + 3b + b2 + -1b2

Combine like terms: -3b + 3b = 0
-12 + 3b + -1b2 = 0 + b2 + -1b2
-12 + 3b + -1b2 = b2 + -1b2

Combine like terms: b2 + -1b2 = 0
-12 + 3b + -1b2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
12 + -3b + b2 = 0

Move the constant term to the right:

Add '-12' to each side of the equation.
12 + -3b + -12 + b2 = 0 + -12

Reorder the terms:
12 + -12 + -3b + b2 = 0 + -12

Combine like terms: 12 + -12 = 0
0 + -3b + b2 = 0 + -12
-3b + b2 = 0 + -12

Combine like terms: 0 + -12 = -12
-3b + b2 = -12

The b term is -3b.  Take half its coefficient (-1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
-3b + 2.25 + b2 = -12 + 2.25

Reorder the terms:
2.25 + -3b + b2 = -12 + 2.25

Combine like terms: -12 + 2.25 = -9.75
2.25 + -3b + b2 = -9.75

Factor a perfect square on the left side:
(b + -1.5)(b + -1.5) = -9.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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