2a^2+9=11a

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Solution for 2a^2+9=11a equation:


Simplifying
2a2 + 9 = 11a

Reorder the terms:
9 + 2a2 = 11a

Solving
9 + 2a2 = 11a

Solving for variable 'a'.

Reorder the terms:
9 + -11a + 2a2 = 11a + -11a

Combine like terms: 11a + -11a = 0
9 + -11a + 2a2 = 0

Factor a trinomial.
(1 + -1a)(9 + -2a) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(9 + -2a)' equal to zero and attempt to solve: Simplifying 9 + -2a = 0 Solving 9 + -2a = 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 + -2a = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -2a = 0 + -9 -2a = 0 + -9 Combine like terms: 0 + -9 = -9 -2a = -9 Divide each side by '-2'. a = 4.5 Simplifying a = 4.5

Solution

a = {1, 4.5}

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