2b(3b-4)=8b-11

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Solution for 2b(3b-4)=8b-11 equation:


Simplifying
2b(3b + -4) = 8b + -11

Reorder the terms:
2b(-4 + 3b) = 8b + -11
(-4 * 2b + 3b * 2b) = 8b + -11
(-8b + 6b2) = 8b + -11

Reorder the terms:
-8b + 6b2 = -11 + 8b

Solving
-8b + 6b2 = -11 + 8b

Solving for variable 'b'.

Reorder the terms:
11 + -8b + -8b + 6b2 = -11 + 8b + 11 + -8b

Combine like terms: -8b + -8b = -16b
11 + -16b + 6b2 = -11 + 8b + 11 + -8b

Reorder the terms:
11 + -16b + 6b2 = -11 + 11 + 8b + -8b

Combine like terms: -11 + 11 = 0
11 + -16b + 6b2 = 0 + 8b + -8b
11 + -16b + 6b2 = 8b + -8b

Combine like terms: 8b + -8b = 0
11 + -16b + 6b2 = 0

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

Divide each side by '6'.
1.833333333 + -2.666666667b + b2 = 0

Move the constant term to the right:

Add '-1.833333333' to each side of the equation.
1.833333333 + -2.666666667b + -1.833333333 + b2 = 0 + -1.833333333

Reorder the terms:
1.833333333 + -1.833333333 + -2.666666667b + b2 = 0 + -1.833333333

Combine like terms: 1.833333333 + -1.833333333 = 0.000000000
0.000000000 + -2.666666667b + b2 = 0 + -1.833333333
-2.666666667b + b2 = 0 + -1.833333333

Combine like terms: 0 + -1.833333333 = -1.833333333
-2.666666667b + b2 = -1.833333333

The b term is -2.666666667b.  Take half its coefficient (-1.333333334).
Square it (1.777777780) and add it to both sides.

Add '1.777777780' to each side of the equation.
-2.666666667b + 1.777777780 + b2 = -1.833333333 + 1.777777780

Reorder the terms:
1.777777780 + -2.666666667b + b2 = -1.833333333 + 1.777777780

Combine like terms: -1.833333333 + 1.777777780 = -0.055555553
1.777777780 + -2.666666667b + b2 = -0.055555553

Factor a perfect square on the left side:
(b + -1.333333334)(b + -1.333333334) = -0.055555553

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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