5a(a+2)=a(2a+5)

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Solution for 5a(a+2)=a(2a+5) equation:


Simplifying
5a(a + 2) = a(2a + 5)

Reorder the terms:
5a(2 + a) = a(2a + 5)
(2 * 5a + a * 5a) = a(2a + 5)
(10a + 5a2) = a(2a + 5)

Reorder the terms:
10a + 5a2 = a(5 + 2a)
10a + 5a2 = (5 * a + 2a * a)
10a + 5a2 = (5a + 2a2)

Solving
10a + 5a2 = 5a + 2a2

Solving for variable 'a'.

Reorder the terms:
10a + -5a + 5a2 + -2a2 = 5a + 2a2 + -5a + -2a2

Combine like terms: 10a + -5a = 5a
5a + 5a2 + -2a2 = 5a + 2a2 + -5a + -2a2

Combine like terms: 5a2 + -2a2 = 3a2
5a + 3a2 = 5a + 2a2 + -5a + -2a2

Reorder the terms:
5a + 3a2 = 5a + -5a + 2a2 + -2a2

Combine like terms: 5a + -5a = 0
5a + 3a2 = 0 + 2a2 + -2a2
5a + 3a2 = 2a2 + -2a2

Combine like terms: 2a2 + -2a2 = 0
5a + 3a2 = 0

Factor out the Greatest Common Factor (GCF), 'a'.
a(5 + 3a) = 0

Subproblem 1

Set the factor 'a' equal to zero and attempt to solve: Simplifying a = 0 Solving a = 0 Move all terms containing a to the left, all other terms to the right. Simplifying a = 0

Subproblem 2

Set the factor '(5 + 3a)' equal to zero and attempt to solve: Simplifying 5 + 3a = 0 Solving 5 + 3a = 0 Move all terms containing a to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + 3a = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 3a = 0 + -5 3a = 0 + -5 Combine like terms: 0 + -5 = -5 3a = -5 Divide each side by '3'. a = -1.666666667 Simplifying a = -1.666666667

Solution

a = {0, -1.666666667}

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