a^2=15a-56

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Solution for a^2=15a-56 equation:


Simplifying
a2 = 15a + -56

Reorder the terms:
a2 = -56 + 15a

Solving
a2 = -56 + 15a

Solving for variable 'a'.

Reorder the terms:
56 + -15a + a2 = -56 + 15a + 56 + -15a

Reorder the terms:
56 + -15a + a2 = -56 + 56 + 15a + -15a

Combine like terms: -56 + 56 = 0
56 + -15a + a2 = 0 + 15a + -15a
56 + -15a + a2 = 15a + -15a

Combine like terms: 15a + -15a = 0
56 + -15a + a2 = 0

Factor a trinomial.
(7 + -1a)(8 + -1a) = 0

Subproblem 1

Set the factor '(7 + -1a)' equal to zero and attempt to solve: Simplifying 7 + -1a = 0 Solving 7 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1a = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1a = 0 + -7 -1a = 0 + -7 Combine like terms: 0 + -7 = -7 -1a = -7 Divide each side by '-1'. a = 7 Simplifying a = 7

Subproblem 2

Set the factor '(8 + -1a)' equal to zero and attempt to solve: Simplifying 8 + -1a = 0 Solving 8 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -1a = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1a = 0 + -8 -1a = 0 + -8 Combine like terms: 0 + -8 = -8 -1a = -8 Divide each side by '-1'. a = 8 Simplifying a = 8

Solution

a = {7, 8}

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