4a^2+7a=2

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Solution for 4a^2+7a=2 equation:


Simplifying
4a2 + 7a = 2

Reorder the terms:
7a + 4a2 = 2

Solving
7a + 4a2 = 2

Solving for variable 'a'.

Reorder the terms:
-2 + 7a + 4a2 = 2 + -2

Combine like terms: 2 + -2 = 0
-2 + 7a + 4a2 = 0

Factor a trinomial.
(-2 + -1a)(1 + -4a) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(1 + -4a)' equal to zero and attempt to solve: Simplifying 1 + -4a = 0 Solving 1 + -4a = 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 + -4a = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -4a = 0 + -1 -4a = 0 + -1 Combine like terms: 0 + -1 = -1 -4a = -1 Divide each side by '-4'. a = 0.25 Simplifying a = 0.25

Solution

a = {-2, 0.25}

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