126=2X^2+8X+6

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Solution for 126=2X^2+8X+6 equation:


Simplifying
126 = 2X2 + 8X + 6

Reorder the terms:
126 = 6 + 8X + 2X2

Solving
126 = 6 + 8X + 2X2

Solving for variable 'X'.

Combine like terms: 126 + -6 = 120
120 + -8X + -2X2 = 6 + 8X + 2X2 + -6 + -8X + -2X2

Reorder the terms:
120 + -8X + -2X2 = 6 + -6 + 8X + -8X + 2X2 + -2X2

Combine like terms: 6 + -6 = 0
120 + -8X + -2X2 = 0 + 8X + -8X + 2X2 + -2X2
120 + -8X + -2X2 = 8X + -8X + 2X2 + -2X2

Combine like terms: 8X + -8X = 0
120 + -8X + -2X2 = 0 + 2X2 + -2X2
120 + -8X + -2X2 = 2X2 + -2X2

Combine like terms: 2X2 + -2X2 = 0
120 + -8X + -2X2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(60 + -4X + -1X2) = 0

Factor a trinomial.
2((6 + -1X)(10 + X)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(6 + -1X)' equal to zero and attempt to solve: Simplifying 6 + -1X = 0 Solving 6 + -1X = 0 Move all terms containing X to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1X = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1X = 0 + -6 -1X = 0 + -6 Combine like terms: 0 + -6 = -6 -1X = -6 Divide each side by '-1'. X = 6 Simplifying X = 6

Subproblem 2

Set the factor '(10 + X)' equal to zero and attempt to solve: Simplifying 10 + X = 0 Solving 10 + X = 0 Move all terms containing X to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + X = 0 + -10 Combine like terms: 10 + -10 = 0 0 + X = 0 + -10 X = 0 + -10 Combine like terms: 0 + -10 = -10 X = -10 Simplifying X = -10

Solution

X = {6, -10}

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