x^2-2x+400=0

Simple and best practice solution for x^2-2x+400=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 x^2-2x+400=0 equation:


Simplifying
x2 + -2x + 400 = 0

Reorder the terms:
400 + -2x + x2 = 0

Solving
400 + -2x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-400' to each side of the equation.
400 + -2x + -400 + x2 = 0 + -400

Reorder the terms:
400 + -400 + -2x + x2 = 0 + -400

Combine like terms: 400 + -400 = 0
0 + -2x + x2 = 0 + -400
-2x + x2 = 0 + -400

Combine like terms: 0 + -400 = -400
-2x + x2 = -400

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 = -400 + 1

Reorder the terms:
1 + -2x + x2 = -400 + 1

Combine like terms: -400 + 1 = -399
1 + -2x + x2 = -399

Factor a perfect square on the left side:
(x + -1)(x + -1) = -399

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 25=5+.50x | | (q-3)*2=16 | | 12x-31=38+9x | | 5x+3=-x+21 | | 2x(4x-7)= | | 8+p=9 | | -x-17=11-2x | | 3-v+3=1-4v+1 | | -66+x=9x+62 | | 16x+21=46-y | | -7=-7x-3(-x+17) | | G=7F+6 | | -34-8x=29-11x | | 79x^2-200x+125=0 | | x+7+3x=13+x | | 6(a-3)= | | 45-33x+33-44x=-45+33x-33+44x | | 11x-11=7x+12 | | 4j+4=6 | | 6y-5=3+4y | | 3x^2y^4+7x^2y^4-10x^4y^2= | | 3k+5-k=-9 | | -2x=160 | | 2((x-2)/2)=0 | | 2((x-2)/2) | | 45-33x+33-44=-45+33x-33+44x | | 3y-3=14 | | -7x-3+6x=-8x+9 | | 12x+18y=50 | | -10x+10x-10x= | | 7a+5(a-3)= | | 35=3(5+2x) |

Equations solver categories