a=5a(3-2a)+7a(a+4)

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Solution for a=5a(3-2a)+7a(a+4) equation:


Simplifying
a = 5a(3 + -2a) + 7a(a + 4)
a = (3 * 5a + -2a * 5a) + 7a(a + 4)
a = (15a + -10a2) + 7a(a + 4)

Reorder the terms:
a = 15a + -10a2 + 7a(4 + a)
a = 15a + -10a2 + (4 * 7a + a * 7a)
a = 15a + -10a2 + (28a + 7a2)

Reorder the terms:
a = 15a + 28a + -10a2 + 7a2

Combine like terms: 15a + 28a = 43a
a = 43a + -10a2 + 7a2

Combine like terms: -10a2 + 7a2 = -3a2
a = 43a + -3a2

Solving
a = 43a + -3a2

Solving for variable 'a'.

Combine like terms: a + -43a = -42a
-42a + 3a2 = 43a + -3a2 + -43a + 3a2

Reorder the terms:
-42a + 3a2 = 43a + -43a + -3a2 + 3a2

Combine like terms: 43a + -43a = 0
-42a + 3a2 = 0 + -3a2 + 3a2
-42a + 3a2 = -3a2 + 3a2

Combine like terms: -3a2 + 3a2 = 0
-42a + 3a2 = 0

Factor out the Greatest Common Factor (GCF), '3a'.
3a(-14 + a) = 0

Ignore the factor 3.

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 '(-14 + a)' equal to zero and attempt to solve: Simplifying -14 + a = 0 Solving -14 + a = 0 Move all terms containing a to the left, all other terms to the right. Add '14' to each side of the equation. -14 + 14 + a = 0 + 14 Combine like terms: -14 + 14 = 0 0 + a = 0 + 14 a = 0 + 14 Combine like terms: 0 + 14 = 14 a = 14 Simplifying a = 14

Solution

a = {0, 14}

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