(2a+3)*(a-3)=

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Solution for (2a+3)*(a-3)= equation:


Simplifying
(2a + 3)(a + -3) = 0

Reorder the terms:
(3 + 2a)(a + -3) = 0

Reorder the terms:
(3 + 2a)(-3 + a) = 0

Multiply (3 + 2a) * (-3 + a)
(3(-3 + a) + 2a * (-3 + a)) = 0
((-3 * 3 + a * 3) + 2a * (-3 + a)) = 0
((-9 + 3a) + 2a * (-3 + a)) = 0
(-9 + 3a + (-3 * 2a + a * 2a)) = 0
(-9 + 3a + (-6a + 2a2)) = 0

Combine like terms: 3a + -6a = -3a
(-9 + -3a + 2a2) = 0

Solving
-9 + -3a + 2a2 = 0

Solving for variable 'a'.

Factor a trinomial.
(-3 + -2a)(3 + -1a) = 0

Subproblem 1

Set the factor '(-3 + -2a)' equal to zero and attempt to solve: Simplifying -3 + -2a = 0 Solving -3 + -2a = 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 + -2a = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -2a = 0 + 3 -2a = 0 + 3 Combine like terms: 0 + 3 = 3 -2a = 3 Divide each side by '-2'. a = -1.5 Simplifying a = -1.5

Subproblem 2

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

Solution

a = {-1.5, 3}

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