42a^2+a=30

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Solution for 42a^2+a=30 equation:


Simplifying
42a2 + a = 30

Reorder the terms:
a + 42a2 = 30

Solving
a + 42a2 = 30

Solving for variable 'a'.

Reorder the terms:
-30 + a + 42a2 = 30 + -30

Combine like terms: 30 + -30 = 0
-30 + a + 42a2 = 0

Factor a trinomial.
(-6 + -7a)(5 + -6a) = 0

Subproblem 1

Set the factor '(-6 + -7a)' equal to zero and attempt to solve: Simplifying -6 + -7a = 0 Solving -6 + -7a = 0 Move all terms containing a to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + -7a = 0 + 6 Combine like terms: -6 + 6 = 0 0 + -7a = 0 + 6 -7a = 0 + 6 Combine like terms: 0 + 6 = 6 -7a = 6 Divide each side by '-7'. a = -0.8571428571 Simplifying a = -0.8571428571

Subproblem 2

Set the factor '(5 + -6a)' equal to zero and attempt to solve: Simplifying 5 + -6a = 0 Solving 5 + -6a = 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 + -6a = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -6a = 0 + -5 -6a = 0 + -5 Combine like terms: 0 + -5 = -5 -6a = -5 Divide each side by '-6'. a = 0.8333333333 Simplifying a = 0.8333333333

Solution

a = {-0.8571428571, 0.8333333333}

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