120a^3=2(45a^2)

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Solution for 120a^3=2(45a^2) equation:


Simplifying
120a3 = 2(45a2)

Remove parenthesis around (45a2)
120a3 = 2 * 45a2

Multiply 2 * 45
120a3 = 90a2

Solving
120a3 = 90a2

Solving for variable 'a'.

Reorder the terms:
-90a2 + 120a3 = 90a2 + -90a2

Combine like terms: 90a2 + -90a2 = 0
-90a2 + 120a3 = 0

Factor out the Greatest Common Factor (GCF), '30a2'.
30a2(-3 + 4a) = 0

Ignore the factor 30.

Subproblem 1

Set the factor 'a2' equal to zero and attempt to solve: Simplifying a2 = 0 Solving a2 = 0 Move all terms containing a to the left, all other terms to the right. Simplifying a2 = 0 Take the square root of each side: a = {0}

Subproblem 2

Set the factor '(-3 + 4a)' equal to zero and attempt to solve: Simplifying -3 + 4a = 0 Solving -3 + 4a = 0 Move all terms containing a to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + 4a = 0 + 3 Combine like terms: -3 + 3 = 0 0 + 4a = 0 + 3 4a = 0 + 3 Combine like terms: 0 + 3 = 3 4a = 3 Divide each side by '4'. a = 0.75 Simplifying a = 0.75

Solution

a = {0, 0.75}

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