-2b^2-8b-11=-3

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Solution for -2b^2-8b-11=-3 equation:


Simplifying
-2b2 + -8b + -11 = -3

Reorder the terms:
-11 + -8b + -2b2 = -3

Solving
-11 + -8b + -2b2 = -3

Solving for variable 'b'.

Reorder the terms:
-11 + 3 + -8b + -2b2 = -3 + 3

Combine like terms: -11 + 3 = -8
-8 + -8b + -2b2 = -3 + 3

Combine like terms: -3 + 3 = 0
-8 + -8b + -2b2 = 0

Factor out the Greatest Common Factor (GCF), '-2'.
-2(4 + 4b + b2) = 0

Factor a trinomial.
-2((2 + b)(2 + b)) = 0

Ignore the factor -2.

Subproblem 1

Set the factor '(2 + b)' equal to zero and attempt to solve: Simplifying 2 + b = 0 Solving 2 + b = 0 Move all terms containing b to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + b = 0 + -2 Combine like terms: 2 + -2 = 0 0 + b = 0 + -2 b = 0 + -2 Combine like terms: 0 + -2 = -2 b = -2 Simplifying b = -2

Subproblem 2

Set the factor '(2 + b)' equal to zero and attempt to solve: Simplifying 2 + b = 0 Solving 2 + b = 0 Move all terms containing b to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + b = 0 + -2 Combine like terms: 2 + -2 = 0 0 + b = 0 + -2 b = 0 + -2 Combine like terms: 0 + -2 = -2 b = -2 Simplifying b = -2

Solution

b = {-2, -2}

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