x^2+20=2x

Simple and best practice solution for x^2+20=2x 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+20=2x equation:


Simplifying
x2 + 20 = 2x

Reorder the terms:
20 + x2 = 2x

Solving
20 + x2 = 2x

Solving for variable 'x'.

Reorder the terms:
20 + -2x + x2 = 2x + -2x

Combine like terms: 2x + -2x = 0
20 + -2x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-20' to each side of the equation.
20 + -2x + -20 + x2 = 0 + -20

Reorder the terms:
20 + -20 + -2x + x2 = 0 + -20

Combine like terms: 20 + -20 = 0
0 + -2x + x2 = 0 + -20
-2x + x2 = 0 + -20

Combine like terms: 0 + -20 = -20
-2x + x2 = -20

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 = -20 + 1

Reorder the terms:
1 + -2x + x2 = -20 + 1

Combine like terms: -20 + 1 = -19
1 + -2x + x2 = -19

Factor a perfect square on the left side:
(x + -1)(x + -1) = -19

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 8+1*2=x+3 | | 6d=1+c | | x^2+4x-84=-7 | | 16*8/15 | | 7+y=14 | | 5c-2d=0 | | 0.3+0.0004t=0.55 | | (7x+2)(3x-5)=0 | | 11=9x-9 | | n^2+12n=-27 | | 4/15q-7/3=5 | | x=23+7 | | x/3-6=-7 | | y=Ix-2I | | 15w+43=43+15w | | -4x-5/3=31/3 | | 1/8(8x-1)=-7/8-3/8 | | 13200-250x=10560x | | 5x+2x=11-x+8 | | (7-x)+2=-1 | | 3x=2(3x-2) | | 9-12x=12x-9 | | 2m-4=0 | | 13200-250x=2x | | x/5-1=32 | | x-3x+15=45 | | y+9=7y+9 | | 5x+7=-17-7 | | (8C+9)(5C-4)=0 | | 2x-5+3=6x+4 | | x-10+5=-10 | | 9x-11=88 |

Equations solver categories