-x^2+x+6=2x+8

Simple and best practice solution for -x^2+x+6=2x+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 -x^2+x+6=2x+8 equation:


Simplifying
-1x2 + x + 6 = 2x + 8

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

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

Solving
6 + x + -1x2 = 8 + 2x

Solving for variable 'x'.

Reorder the terms:
6 + -8 + x + -2x + -1x2 = 8 + 2x + -8 + -2x

Combine like terms: 6 + -8 = -2
-2 + x + -2x + -1x2 = 8 + 2x + -8 + -2x

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

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

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

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

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

Ignore the factor -1.

Subproblem 1

Set the factor '(2 + x + x2)' equal to zero and attempt to solve: Simplifying 2 + x + x2 = 0 Solving 2 + x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-2' to each side of the equation. 2 + x + -2 + x2 = 0 + -2 Reorder the terms: 2 + -2 + x + x2 = 0 + -2 Combine like terms: 2 + -2 = 0 0 + x + x2 = 0 + -2 x + x2 = 0 + -2 Combine like terms: 0 + -2 = -2 x + x2 = -2 The x term is x. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. x + 0.25 + x2 = -2 + 0.25 Reorder the terms: 0.25 + x + x2 = -2 + 0.25 Combine like terms: -2 + 0.25 = -1.75 0.25 + x + x2 = -1.75 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = -1.75 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

See similar equations:

| 10p+7=5p+17 | | 3(3x+3)+2(2x+2)=39 | | 3x^2-37x+147=0 | | 3(x-4)42/14 | | 20t^2+t=21 | | -5+6x+6=3 | | x^4-2x^2+3x-1=0 | | 5(8r-4)=7(8+3r) | | 5/(40-k)=3/k | | 11x-8=9x-4 | | 3.5+10x=7.32 | | -6+8(1-6v)=2+6v | | 2/3x-5/3x=4 | | 8x-7-7x=-10-9 | | 30a+42= | | 1/8a=3/4 | | 5(x+3)=13x | | 2(y+1)+3(2y+1)=93 | | 18x+5y=48 | | 6x-21-4=1 | | 4x-3x-5=8-13 | | -3x-92+13x=-2 | | (7x-3)-(4x+2)=13 | | 4x+4a=b | | 2/3x+4/9x | | 2+0.15x=3+0.08x | | 158-4x=x^2-5x | | 63=4a+3(a+2)+1 | | 5x*15=90 | | 6n-37=6(n-6)-1 | | 8n^2-63n-8=0 | | -3=6x+6-5x |

Equations solver categories