4a^2+9a=9

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Solution for 4a^2+9a=9 equation:


Simplifying
4a2 + 9a = 9

Reorder the terms:
9a + 4a2 = 9

Solving
9a + 4a2 = 9

Solving for variable 'a'.

Reorder the terms:
-9 + 9a + 4a2 = 9 + -9

Combine like terms: 9 + -9 = 0
-9 + 9a + 4a2 = 0

Factor a trinomial.
(-3 + -1a)(3 + -4a) = 0

Subproblem 1

Set the factor '(-3 + -1a)' equal to zero and attempt to solve: Simplifying -3 + -1a = 0 Solving -3 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -1a = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -1a = 0 + 3 -1a = 0 + 3 Combine like terms: 0 + 3 = 3 -1a = 3 Divide each side by '-1'. a = -3 Simplifying a = -3

Subproblem 2

Set the factor '(3 + -4a)' equal to zero and attempt to solve: Simplifying 3 + -4a = 0 Solving 3 + -4a = 0 Move all terms containing a to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -4a = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -4a = 0 + -3 -4a = 0 + -3 Combine like terms: 0 + -3 = -3 -4a = -3 Divide each side by '-4'. a = 0.75 Simplifying a = 0.75

Solution

a = {-3, 0.75}

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