a(a-5)=36

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Solution for a(a-5)=36 equation:


Simplifying
a(a + -5) = 36

Reorder the terms:
a(-5 + a) = 36
(-5 * a + a * a) = 36
(-5a + a2) = 36

Solving
-5a + a2 = 36

Solving for variable 'a'.

Reorder the terms:
-36 + -5a + a2 = 36 + -36

Combine like terms: 36 + -36 = 0
-36 + -5a + a2 = 0

Factor a trinomial.
(-4 + -1a)(9 + -1a) = 0

Subproblem 1

Set the factor '(-4 + -1a)' equal to zero and attempt to solve: Simplifying -4 + -1a = 0 Solving -4 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -1a = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1a = 0 + 4 -1a = 0 + 4 Combine like terms: 0 + 4 = 4 -1a = 4 Divide each side by '-1'. a = -4 Simplifying a = -4

Subproblem 2

Set the factor '(9 + -1a)' equal to zero and attempt to solve: Simplifying 9 + -1a = 0 Solving 9 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1a = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1a = 0 + -9 -1a = 0 + -9 Combine like terms: 0 + -9 = -9 -1a = -9 Divide each side by '-1'. a = 9 Simplifying a = 9

Solution

a = {-4, 9}

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