27a^2+42a-5=0

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Solution for 27a^2+42a-5=0 equation:


Simplifying
27a2 + 42a + -5 = 0

Reorder the terms:
-5 + 42a + 27a2 = 0

Solving
-5 + 42a + 27a2 = 0

Solving for variable 'a'.

Factor a trinomial.
(-5 + -3a)(1 + -9a) = 0

Subproblem 1

Set the factor '(-5 + -3a)' equal to zero and attempt to solve: Simplifying -5 + -3a = 0 Solving -5 + -3a = 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 + -3a = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -3a = 0 + 5 -3a = 0 + 5 Combine like terms: 0 + 5 = 5 -3a = 5 Divide each side by '-3'. a = -1.666666667 Simplifying a = -1.666666667

Subproblem 2

Set the factor '(1 + -9a)' equal to zero and attempt to solve: Simplifying 1 + -9a = 0 Solving 1 + -9a = 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 + -9a = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -9a = 0 + -1 -9a = 0 + -1 Combine like terms: 0 + -1 = -1 -9a = -1 Divide each side by '-9'. a = 0.1111111111 Simplifying a = 0.1111111111

Solution

a = {-1.666666667, 0.1111111111}

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