(8a+5)(a-2)=0

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Solution for (8a+5)(a-2)=0 equation:


Simplifying
(8a + 5)(a + -2) = 0

Reorder the terms:
(5 + 8a)(a + -2) = 0

Reorder the terms:
(5 + 8a)(-2 + a) = 0

Multiply (5 + 8a) * (-2 + a)
(5(-2 + a) + 8a * (-2 + a)) = 0
((-2 * 5 + a * 5) + 8a * (-2 + a)) = 0
((-10 + 5a) + 8a * (-2 + a)) = 0
(-10 + 5a + (-2 * 8a + a * 8a)) = 0
(-10 + 5a + (-16a + 8a2)) = 0

Combine like terms: 5a + -16a = -11a
(-10 + -11a + 8a2) = 0

Solving
-10 + -11a + 8a2 = 0

Solving for variable 'a'.

Factor a trinomial.
(-5 + -8a)(2 + -1a) = 0

Subproblem 1

Set the factor '(-5 + -8a)' equal to zero and attempt to solve: Simplifying -5 + -8a = 0 Solving -5 + -8a = 0 Move all terms containing a to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -8a = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -8a = 0 + 5 -8a = 0 + 5 Combine like terms: 0 + 5 = 5 -8a = 5 Divide each side by '-8'. a = -0.625 Simplifying a = -0.625

Subproblem 2

Set the factor '(2 + -1a)' equal to zero and attempt to solve: Simplifying 2 + -1a = 0 Solving 2 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1a = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1a = 0 + -2 -1a = 0 + -2 Combine like terms: 0 + -2 = -2 -1a = -2 Divide each side by '-1'. a = 2 Simplifying a = 2

Solution

a = {-0.625, 2}

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