4a^2-20a+19=-2

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Solution for 4a^2-20a+19=-2 equation:


Simplifying
4a2 + -20a + 19 = -2

Reorder the terms:
19 + -20a + 4a2 = -2

Solving
19 + -20a + 4a2 = -2

Solving for variable 'a'.

Reorder the terms:
19 + 2 + -20a + 4a2 = -2 + 2

Combine like terms: 19 + 2 = 21
21 + -20a + 4a2 = -2 + 2

Combine like terms: -2 + 2 = 0
21 + -20a + 4a2 = 0

Factor a trinomial.
(3 + -2a)(7 + -2a) = 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 '(7 + -2a)' equal to zero and attempt to solve: Simplifying 7 + -2a = 0 Solving 7 + -2a = 0 Move all terms containing a to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -2a = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -2a = 0 + -7 -2a = 0 + -7 Combine like terms: 0 + -7 = -7 -2a = -7 Divide each side by '-2'. a = 3.5 Simplifying a = 3.5

Solution

a = {1.5, 3.5}

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