-2x+x^2+15=0

Simple and best practice solution for -2x+x^2+15=0 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+15=0 equation:


Simplifying
-2x + x2 + 15 = 0

Reorder the terms:
15 + -2x + x2 = 0

Solving
15 + -2x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-15' to each side of the equation.
15 + -2x + -15 + x2 = 0 + -15

Reorder the terms:
15 + -15 + -2x + x2 = 0 + -15

Combine like terms: 15 + -15 = 0
0 + -2x + x2 = 0 + -15
-2x + x2 = 0 + -15

Combine like terms: 0 + -15 = -15
-2x + x2 = -15

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 = -15 + 1

Reorder the terms:
1 + -2x + x2 = -15 + 1

Combine like terms: -15 + 1 = -14
1 + -2x + x2 = -14

Factor a perfect square on the left side:
(x + -1)(x + -1) = -14

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 6+.10=.15x+8 | | 2x+9+3x=36-2 | | x+53=3x-17 | | 9x+4=7x+28 | | x=137 | | 7x+28=9x+4 | | (3-x)(2x+1)-(3-x)(x-4)=0 | | 5x-25=2x+31 | | 5x-47=3x+15 | | 8x+6=10-12 | | 9t+13=121 | | (2x^2)+8x+6=0 | | 5(3.5)=-3(3.5)+28 | | x^2-1/2x=0 | | -2/3b+2/5=6.4/5 | | 2x22x8/7 | | x^2-24X=-105 | | -4(2-1.5y)-6y=-8 | | 21/3s+2/3s | | 2y=-6x-2 | | 4x+6y+8=0 | | 4x=-6y-8 | | x^4=75 | | x=-1.5y-2 | | 20=8n | | 3a=0.45 | | 5x+2x-4=24 | | 2g+2(-6+2g)=1-g | | x+y=75x+12y=7 | | x+4=114 | | x^2+4=114 | | x^2+4=11 |

Equations solver categories