(-x^2+5x+6)+(-8x+4)=

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Solution for (-x^2+5x+6)+(-8x+4)= equation:


Simplifying
(-1x2 + 5x + 6) + (-8x + 4) = 0

Reorder the terms:
(6 + 5x + -1x2) + (-8x + 4) = 0

Remove parenthesis around (6 + 5x + -1x2)
6 + 5x + -1x2 + (-8x + 4) = 0

Reorder the terms:
6 + 5x + -1x2 + (4 + -8x) = 0

Remove parenthesis around (4 + -8x)
6 + 5x + -1x2 + 4 + -8x = 0

Reorder the terms:
6 + 4 + 5x + -8x + -1x2 = 0

Combine like terms: 6 + 4 = 10
10 + 5x + -8x + -1x2 = 0

Combine like terms: 5x + -8x = -3x
10 + -3x + -1x2 = 0

Solving
10 + -3x + -1x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(2 + -1x)(5 + 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 '(5 + x)' equal to zero and attempt to solve: Simplifying 5 + x = 0 Solving 5 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + x = 0 + -5 x = 0 + -5 Combine like terms: 0 + -5 = -5 x = -5 Simplifying x = -5

Solution

x = {2, -5}

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