(2a-3b)(4a^2+6ab+9b^2)+27b^2=8a^3

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Solution for (2a-3b)(4a^2+6ab+9b^2)+27b^2=8a^3 equation:


Simplifying
(2a + -3b)(4a2 + 6ab + 9b2) + 27b2 = 8a3

Reorder the terms:
(2a + -3b)(6ab + 4a2 + 9b2) + 27b2 = 8a3

Multiply (2a + -3b) * (6ab + 4a2 + 9b2)
(2a * (6ab + 4a2 + 9b2) + -3b * (6ab + 4a2 + 9b2)) + 27b2 = 8a3
((6ab * 2a + 4a2 * 2a + 9b2 * 2a) + -3b * (6ab + 4a2 + 9b2)) + 27b2 = 8a3

Reorder the terms:
((18ab2 + 12a2b + 8a3) + -3b * (6ab + 4a2 + 9b2)) + 27b2 = 8a3
((18ab2 + 12a2b + 8a3) + -3b * (6ab + 4a2 + 9b2)) + 27b2 = 8a3
(18ab2 + 12a2b + 8a3 + (6ab * -3b + 4a2 * -3b + 9b2 * -3b)) + 27b2 = 8a3
(18ab2 + 12a2b + 8a3 + (-18ab2 + -12a2b + -27b3)) + 27b2 = 8a3

Reorder the terms:
(18ab2 + -18ab2 + 12a2b + -12a2b + 8a3 + -27b3) + 27b2 = 8a3

Combine like terms: 18ab2 + -18ab2 = 0
(0 + 12a2b + -12a2b + 8a3 + -27b3) + 27b2 = 8a3
(12a2b + -12a2b + 8a3 + -27b3) + 27b2 = 8a3

Combine like terms: 12a2b + -12a2b = 0
(0 + 8a3 + -27b3) + 27b2 = 8a3
(8a3 + -27b3) + 27b2 = 8a3

Reorder the terms:
8a3 + 27b2 + -27b3 = 8a3

Add '-8a3' to each side of the equation.
8a3 + 27b2 + -8a3 + -27b3 = 8a3 + -8a3

Reorder the terms:
8a3 + -8a3 + 27b2 + -27b3 = 8a3 + -8a3

Combine like terms: 8a3 + -8a3 = 0
0 + 27b2 + -27b3 = 8a3 + -8a3
27b2 + -27b3 = 8a3 + -8a3

Combine like terms: 8a3 + -8a3 = 0
27b2 + -27b3 = 0

Solving
27b2 + -27b3 = 0

Solving for variable 'b'.

Factor out the Greatest Common Factor (GCF), '27b2'.
27b2(1 + -1b) = 0

Ignore the factor 27.

Subproblem 1

Set the factor 'b2' equal to zero and attempt to solve: Simplifying b2 = 0 Solving b2 = 0 Move all terms containing b to the left, all other terms to the right. Simplifying b2 = 0 Take the square root of each side: b = {0}

Subproblem 2

Set the factor '(1 + -1b)' equal to zero and attempt to solve: Simplifying 1 + -1b = 0 Solving 1 + -1b = 0 Move all terms containing b to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -1b = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1b = 0 + -1 -1b = 0 + -1 Combine like terms: 0 + -1 = -1 -1b = -1 Divide each side by '-1'. b = 1 Simplifying b = 1

Solution

b = {0, 1}

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