(-3x+7)-(x^2+x-5)=

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Solution for (-3x+7)-(x^2+x-5)= equation:


Simplifying
(-3x + 7) + -1(x2 + x + -5) = 0

Reorder the terms:
(7 + -3x) + -1(x2 + x + -5) = 0

Remove parenthesis around (7 + -3x)
7 + -3x + -1(x2 + x + -5) = 0

Reorder the terms:
7 + -3x + -1(-5 + x + x2) = 0
7 + -3x + (-5 * -1 + x * -1 + x2 * -1) = 0
7 + -3x + (5 + -1x + -1x2) = 0

Reorder the terms:
7 + 5 + -3x + -1x + -1x2 = 0

Combine like terms: 7 + 5 = 12
12 + -3x + -1x + -1x2 = 0

Combine like terms: -3x + -1x = -4x
12 + -4x + -1x2 = 0

Solving
12 + -4x + -1x2 = 0

Solving for variable 'x'.

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

Subproblem 1

Set the factor '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 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 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2

Subproblem 2

Set the factor '(6 + x)' equal to zero and attempt to solve: Simplifying 6 + x = 0 Solving 6 + x = 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 + x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + x = 0 + -6 x = 0 + -6 Combine like terms: 0 + -6 = -6 x = -6 Simplifying x = -6

Solution

x = {2, -6}

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