(3x^2+7)-(x^2-6x+3)=

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Solution for (3x^2+7)-(x^2-6x+3)= equation:


Simplifying
(3x2 + 7) + -1(x2 + -6x + 3) = 0

Reorder the terms:
(7 + 3x2) + -1(x2 + -6x + 3) = 0

Remove parenthesis around (7 + 3x2)
7 + 3x2 + -1(x2 + -6x + 3) = 0

Reorder the terms:
7 + 3x2 + -1(3 + -6x + x2) = 0
7 + 3x2 + (3 * -1 + -6x * -1 + x2 * -1) = 0
7 + 3x2 + (-3 + 6x + -1x2) = 0

Reorder the terms:
7 + -3 + 6x + 3x2 + -1x2 = 0

Combine like terms: 7 + -3 = 4
4 + 6x + 3x2 + -1x2 = 0

Combine like terms: 3x2 + -1x2 = 2x2
4 + 6x + 2x2 = 0

Solving
4 + 6x + 2x2 = 0

Solving for variable 'x'.

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

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

Ignore the factor 2.

Subproblem 1

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

Subproblem 2

Set the factor '(1 + x)' equal to zero and attempt to solve: Simplifying 1 + x = 0 Solving 1 + x = 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 + x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + x = 0 + -1 x = 0 + -1 Combine like terms: 0 + -1 = -1 x = -1 Simplifying x = -1

Solution

x = {-2, -1}

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