2x=-x^2+8

Simple and best practice solution for 2x=-x^2+8 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 2x=-x^2+8 equation:


Simplifying
2x = -1x2 + 8

Reorder the terms:
2x = 8 + -1x2

Solving
2x = 8 + -1x2

Solving for variable 'x'.

Reorder the terms:
-8 + 2x + x2 = 8 + -1x2 + -8 + x2

Reorder the terms:
-8 + 2x + x2 = 8 + -8 + -1x2 + x2

Combine like terms: 8 + -8 = 0
-8 + 2x + x2 = 0 + -1x2 + x2
-8 + 2x + x2 = -1x2 + x2

Combine like terms: -1x2 + x2 = 0
-8 + 2x + x2 = 0

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

Subproblem 1

Set the factor '(-4 + -1x)' equal to zero and attempt to solve: Simplifying -4 + -1x = 0 Solving -4 + -1x = 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 + -1x = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1x = 0 + 4 -1x = 0 + 4 Combine like terms: 0 + 4 = 4 -1x = 4 Divide each side by '-1'. x = -4 Simplifying x = -4

Subproblem 2

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

Solution

x = {-4, 2}

See similar equations:

| X+(x-62)=162 | | -x(-x-4)=1 | | -(x+5)+8=2x+3-3x | | log(5)25=3x+1 | | 3(x+3)=4x+6x+3 | | log(25)=3x+1 | | -7x^2+2x-1=0 | | (7/2)-(x/3)=2x | | x^2-12=11x | | n/15=10-(n/10) | | In(x-1)+In(x+1)=0 | | (x+3)(x+5)=25 | | a/3=(a-3)/2 | | k=3.7/9.8=-.22 | | -5(t-5)+9t=8t-5 | | 2(x-4)=7x-10-5x | | 8y+6-2y=8+5y+1 | | 7y+15=4y | | -x-10x-25=0 | | 5-4y=11-6y+2y | | 20-9m=9m-8m | | 3(x+1)-1=-4x+36 | | -6t(3t-8)=0 | | 5x^2+40xy+80y^2= | | -3x+16=5x | | x+6.6=-7 | | x2-11/4=0 | | 15-2y^2=7y | | (5ln)(x)=35 | | 10x^2+2x+15x+3= | | 2-4/3 | | x^2=14-49 |

Equations solver categories