(3x-1)(3-x)+4x^2+19=0

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Solution for (3x-1)(3-x)+4x^2+19=0 equation:


Simplifying
(3x + -1)(3 + -1x) + 4x2 + 19 = 0

Reorder the terms:
(-1 + 3x)(3 + -1x) + 4x2 + 19 = 0

Multiply (-1 + 3x) * (3 + -1x)
(-1(3 + -1x) + 3x * (3 + -1x)) + 4x2 + 19 = 0
((3 * -1 + -1x * -1) + 3x * (3 + -1x)) + 4x2 + 19 = 0
((-3 + 1x) + 3x * (3 + -1x)) + 4x2 + 19 = 0
(-3 + 1x + (3 * 3x + -1x * 3x)) + 4x2 + 19 = 0
(-3 + 1x + (9x + -3x2)) + 4x2 + 19 = 0

Combine like terms: 1x + 9x = 10x
(-3 + 10x + -3x2) + 4x2 + 19 = 0

Reorder the terms:
-3 + 19 + 10x + -3x2 + 4x2 = 0

Combine like terms: -3 + 19 = 16
16 + 10x + -3x2 + 4x2 = 0

Combine like terms: -3x2 + 4x2 = 1x2
16 + 10x + 1x2 = 0

Solving
16 + 10x + 1x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(8 + x)(2 + x) = 0

Subproblem 1

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

Subproblem 2

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

Solution

x = {-8, -2}

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