2x^2-20x+51=0

Simple and best practice solution for 2x^2-20x+51=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^2-20x+51=0 equation:


Simplifying
2x2 + -20x + 51 = 0

Reorder the terms:
51 + -20x + 2x2 = 0

Solving
51 + -20x + 2x2 = 0

Solving for variable 'x'.

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

Divide each side by '2'.
25.5 + -10x + x2 = 0

Move the constant term to the right:

Add '-25.5' to each side of the equation.
25.5 + -10x + -25.5 + x2 = 0 + -25.5

Reorder the terms:
25.5 + -25.5 + -10x + x2 = 0 + -25.5

Combine like terms: 25.5 + -25.5 = 0.0
0.0 + -10x + x2 = 0 + -25.5
-10x + x2 = 0 + -25.5

Combine like terms: 0 + -25.5 = -25.5
-10x + x2 = -25.5

The x term is -10x.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10x + 25 + x2 = -25.5 + 25

Reorder the terms:
25 + -10x + x2 = -25.5 + 25

Combine like terms: -25.5 + 25 = -0.5
25 + -10x + x2 = -0.5

Factor a perfect square on the left side:
(x + -5)(x + -5) = -0.5

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 9x^2=81 | | 4+3y=17 | | -2(3x-2)=3x | | 16x-9=32x+3 | | 3x+3=5x+9 | | 18=4K+6 | | 5(5t+1)=10t+9 | | -0.6x+0.3x+7=-5 | | 45x^2+62x-16=0 | | 3(6n+5)=5n-7 | | 9(4y-8)=2y+2 | | 3(6c-1)-14=16c+3 | | 3Y+1=16 | | 4x-(3x+5)=3-(x-1) | | 3Y+1= | | -16n+2=-14n-18 | | 7m-5=10q+10 | | -16n+2=14n-18 | | 5x+4=6x-2 | | 7(6x-3)=43x | | 3y-6=12y-10 | | 4(x-2)-12=0 | | 6x+2=2x-1 | | 37-13=4(x-1) | | 5b-3=2b+2 | | 5=29+4x | | x=-2.5+1.5y | | 0.4(5x+10)=1.6-(x+2) | | 3x-5y=-6 | | x+8y=16-2x | | (2x^8-3z^3)+(3x^8+8x^3)= | | 3x-y=3 |

Equations solver categories