2a^2-4[4b-2b(b+3)]=

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Solution for 2a^2-4[4b-2b(b+3)]= equation:


Simplifying
2a2 + -4[4b + -2b(b + 3)] = 0

Reorder the terms:
2a2 + -4[4b + -2b(3 + b)] = 0
2a2 + -4[4b + (3 * -2b + b * -2b)] = 0
2a2 + -4[4b + (-6b + -2b2)] = 0

Combine like terms: 4b + -6b = -2b
2a2 + -4[-2b + -2b2] = 0
2a2 + [-2b * -4 + -2b2 * -4] = 0
2a2 + [8b + 8b2] = 0

Solving
2a2 + 8b + 8b2 = 0

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-8b' to each side of the equation.
2a2 + 8b + -8b + 8b2 = 0 + -8b

Combine like terms: 8b + -8b = 0
2a2 + 0 + 8b2 = 0 + -8b
2a2 + 8b2 = 0 + -8b
Remove the zero:
2a2 + 8b2 = -8b

Add '-8b2' to each side of the equation.
2a2 + 8b2 + -8b2 = -8b + -8b2

Combine like terms: 8b2 + -8b2 = 0
2a2 + 0 = -8b + -8b2
2a2 = -8b + -8b2

Divide each side by '2'.
a2 = -4b + -4b2

Simplifying
a2 = -4b + -4b2

Reorder the terms:
a2 + 4b + 4b2 = -4b + 4b + -4b2 + 4b2

Combine like terms: -4b + 4b = 0
a2 + 4b + 4b2 = 0 + -4b2 + 4b2
a2 + 4b + 4b2 = -4b2 + 4b2

Combine like terms: -4b2 + 4b2 = 0
a2 + 4b + 4b2 = 0

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

Subproblem 1

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

Subproblem 2

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

Solution

a = {-2b, -2b}

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