=2x^2+7x+3

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Solution for =2x^2+7x+3 equation:


Simplifying
0 = 2x2 + 7x + 3

Reorder the terms:
0 = 3 + 7x + 2x2

Solving
0 = 3 + 7x + 2x2

Solving for variable 'x'.

Combine like terms: 0 + -3 = -3
-3 + -7x + -2x2 = 3 + 7x + 2x2 + -3 + -7x + -2x2

Reorder the terms:
-3 + -7x + -2x2 = 3 + -3 + 7x + -7x + 2x2 + -2x2

Combine like terms: 3 + -3 = 0
-3 + -7x + -2x2 = 0 + 7x + -7x + 2x2 + -2x2
-3 + -7x + -2x2 = 7x + -7x + 2x2 + -2x2

Combine like terms: 7x + -7x = 0
-3 + -7x + -2x2 = 0 + 2x2 + -2x2
-3 + -7x + -2x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
-3 + -7x + -2x2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(3 + 7x + 2x2) = 0

Factor a trinomial.
-1((3 + x)(1 + 2x)) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(3 + x)' equal to zero and attempt to solve: Simplifying 3 + x = 0 Solving 3 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + x = 0 + -3 x = 0 + -3 Combine like terms: 0 + -3 = -3 x = -3 Simplifying x = -3

Subproblem 2

Set the factor '(1 + 2x)' equal to zero and attempt to solve: Simplifying 1 + 2x = 0 Solving 1 + 2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 2x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 2x = 0 + -1 2x = 0 + -1 Combine like terms: 0 + -1 = -1 2x = -1 Divide each side by '2'. x = -0.5 Simplifying x = -0.5

Solution

x = {-3, -0.5}

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