=5x^2+22x+8

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Solution for =5x^2+22x+8 equation:


Simplifying
0 = 5x2 + 22x + 8

Reorder the terms:
0 = 8 + 22x + 5x2

Solving
0 = 8 + 22x + 5x2

Solving for variable 'x'.

Combine like terms: 0 + -8 = -8
-8 + -22x + -5x2 = 8 + 22x + 5x2 + -8 + -22x + -5x2

Reorder the terms:
-8 + -22x + -5x2 = 8 + -8 + 22x + -22x + 5x2 + -5x2

Combine like terms: 8 + -8 = 0
-8 + -22x + -5x2 = 0 + 22x + -22x + 5x2 + -5x2
-8 + -22x + -5x2 = 22x + -22x + 5x2 + -5x2

Combine like terms: 22x + -22x = 0
-8 + -22x + -5x2 = 0 + 5x2 + -5x2
-8 + -22x + -5x2 = 5x2 + -5x2

Combine like terms: 5x2 + -5x2 = 0
-8 + -22x + -5x2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(8 + 22x + 5x2) = 0

Factor a trinomial.
-1((4 + x)(2 + 5x)) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(4 + x)' equal to zero and attempt to solve: Simplifying 4 + x = 0 Solving 4 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + x = 0 + -4 x = 0 + -4 Combine like terms: 0 + -4 = -4 x = -4 Simplifying x = -4

Subproblem 2

Set the factor '(2 + 5x)' equal to zero and attempt to solve: Simplifying 2 + 5x = 0 Solving 2 + 5x = 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 + 5x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 5x = 0 + -2 5x = 0 + -2 Combine like terms: 0 + -2 = -2 5x = -2 Divide each side by '5'. x = -0.4 Simplifying x = -0.4

Solution

x = {-4, -0.4}

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