-8=-2x+x^2

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


Simplifying
-8 = -2x + x2

Solving
-8 = -2x + x2

Solving for variable 'x'.

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

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

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

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
8 + -2x + x2 = 0

Move the constant term to the right:

Add '-8' to each side of the equation.
8 + -2x + -8 + x2 = 0 + -8

Reorder the terms:
8 + -8 + -2x + x2 = 0 + -8

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

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

The x term is -2x.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2x + 1 + x2 = -8 + 1

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

Combine like terms: -8 + 1 = -7
1 + -2x + x2 = -7

Factor a perfect square on the left side:
(x + -1)(x + -1) = -7

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| y-1=3x-9 | | 3x+6+7x-11+41+62+6x-5+4x+7=360 | | -5(4t-3)+6t=5t-8 | | b-5=2 | | -7(3h-5)=77 | | 6-z=4+4z | | 2(3n+5)=7(5n+7)+1 | | 4(1v-1)+7=5(2v-3) | | 300x+1400y=8500 | | 7=8x-3x^2 | | w-(-6)/-3=1 | | -2x+4=3x+9 | | (3/3)*(3/3) | | -4(1x+1)+6x=2(1x+2)-8 | | h(x)=4.9X^2+2x+3 | | 5(g-7)+2[g-3g(g-5)]=0 | | -2(5t-2)+8t=7t-9 | | 6*x=2/3 | | 6x^2+4=3x | | 4(x+12)+5x=9x-48 | | 2x-3(5)=-9 | | 5(6-7)+2[g-3(g-5)]=0 | | w/2-11=9 | | 6+6(2+x)=-5x+6(x+8+5) | | x+53=45+2x | | 0.15(y-5)+0.39y=0.04y-0.50 | | X+(1+x)+(2+x)=51 | | 9k-z=43 | | -6(r+.2)=1.8 | | X^4+2x^2y^2+9y^4= | | -15-2=-5 | | 3x(x-5)-(x+5)=0 |

Equations solver categories