4b^2-b+4=-5

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Solution for 4b^2-b+4=-5 equation:


Simplifying
4b2 + -1b + 4 = -5

Reorder the terms:
4 + -1b + 4b2 = -5

Solving
4 + -1b + 4b2 = -5

Solving for variable 'b'.

Reorder the terms:
4 + 5 + -1b + 4b2 = -5 + 5

Combine like terms: 4 + 5 = 9
9 + -1b + 4b2 = -5 + 5

Combine like terms: -5 + 5 = 0
9 + -1b + 4b2 = 0

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

Divide each side by '4'.
2.25 + -0.25b + b2 = 0

Move the constant term to the right:

Add '-2.25' to each side of the equation.
2.25 + -0.25b + -2.25 + b2 = 0 + -2.25

Reorder the terms:
2.25 + -2.25 + -0.25b + b2 = 0 + -2.25

Combine like terms: 2.25 + -2.25 = 0.00
0.00 + -0.25b + b2 = 0 + -2.25
-0.25b + b2 = 0 + -2.25

Combine like terms: 0 + -2.25 = -2.25
-0.25b + b2 = -2.25

The b term is -0.25b.  Take half its coefficient (-0.125).
Square it (0.015625) and add it to both sides.

Add '0.015625' to each side of the equation.
-0.25b + 0.015625 + b2 = -2.25 + 0.015625

Reorder the terms:
0.015625 + -0.25b + b2 = -2.25 + 0.015625

Combine like terms: -2.25 + 0.015625 = -2.234375
0.015625 + -0.25b + b2 = -2.234375

Factor a perfect square on the left side:
(b + -0.125)(b + -0.125) = -2.234375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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