20-x=-10x^2+200x-250

Simple and best practice solution for 20-x=-10x^2+200x-250 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 20-x=-10x^2+200x-250 equation:


Simplifying
20 + -1x = -10x2 + 200x + -250

Reorder the terms:
20 + -1x = -250 + 200x + -10x2

Solving
20 + -1x = -250 + 200x + -10x2

Solving for variable 'x'.

Reorder the terms:
20 + 250 + -1x + -200x + 10x2 = -250 + 200x + -10x2 + 250 + -200x + 10x2

Combine like terms: 20 + 250 = 270
270 + -1x + -200x + 10x2 = -250 + 200x + -10x2 + 250 + -200x + 10x2

Combine like terms: -1x + -200x = -201x
270 + -201x + 10x2 = -250 + 200x + -10x2 + 250 + -200x + 10x2

Reorder the terms:
270 + -201x + 10x2 = -250 + 250 + 200x + -200x + -10x2 + 10x2

Combine like terms: -250 + 250 = 0
270 + -201x + 10x2 = 0 + 200x + -200x + -10x2 + 10x2
270 + -201x + 10x2 = 200x + -200x + -10x2 + 10x2

Combine like terms: 200x + -200x = 0
270 + -201x + 10x2 = 0 + -10x2 + 10x2
270 + -201x + 10x2 = -10x2 + 10x2

Combine like terms: -10x2 + 10x2 = 0
270 + -201x + 10x2 = 0

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

Divide each side by '10'.
27 + -20.1x + x2 = 0

Move the constant term to the right:

Add '-27' to each side of the equation.
27 + -20.1x + -27 + x2 = 0 + -27

Reorder the terms:
27 + -27 + -20.1x + x2 = 0 + -27

Combine like terms: 27 + -27 = 0
0 + -20.1x + x2 = 0 + -27
-20.1x + x2 = 0 + -27

Combine like terms: 0 + -27 = -27
-20.1x + x2 = -27

The x term is -20.1x.  Take half its coefficient (-10.05).
Square it (101.0025) and add it to both sides.

Add '101.0025' to each side of the equation.
-20.1x + 101.0025 + x2 = -27 + 101.0025

Reorder the terms:
101.0025 + -20.1x + x2 = -27 + 101.0025

Combine like terms: -27 + 101.0025 = 74.0025
101.0025 + -20.1x + x2 = 74.0025

Factor a perfect square on the left side:
(x + -10.05)(x + -10.05) = 74.0025

Calculate the square root of the right side: 8.602470575

Break this problem into two subproblems by setting 
(x + -10.05) equal to 8.602470575 and -8.602470575.

Subproblem 1

x + -10.05 = 8.602470575 Simplifying x + -10.05 = 8.602470575 Reorder the terms: -10.05 + x = 8.602470575 Solving -10.05 + x = 8.602470575 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '10.05' to each side of the equation. -10.05 + 10.05 + x = 8.602470575 + 10.05 Combine like terms: -10.05 + 10.05 = 0.00 0.00 + x = 8.602470575 + 10.05 x = 8.602470575 + 10.05 Combine like terms: 8.602470575 + 10.05 = 18.652470575 x = 18.652470575 Simplifying x = 18.652470575

Subproblem 2

x + -10.05 = -8.602470575 Simplifying x + -10.05 = -8.602470575 Reorder the terms: -10.05 + x = -8.602470575 Solving -10.05 + x = -8.602470575 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '10.05' to each side of the equation. -10.05 + 10.05 + x = -8.602470575 + 10.05 Combine like terms: -10.05 + 10.05 = 0.00 0.00 + x = -8.602470575 + 10.05 x = -8.602470575 + 10.05 Combine like terms: -8.602470575 + 10.05 = 1.447529425 x = 1.447529425 Simplifying x = 1.447529425

Solution

The solution to the problem is based on the solutions from the subproblems. x = {18.652470575, 1.447529425}

See similar equations:

| 535+4.50x=12x | | .24(24)+.06x=.12(12+x) | | (2i+7)(4i-7)=14+iy | | x-x(.10)=200 | | -2m+14=41 | | x^2+2x+3x=2x+10 | | 5k-43=22 | | =35x^2y^2+215xy^2-210y^2 | | x^2+2x+3x=2x+5 | | 4y-7=-19 | | 14-3x+5x-2=6-8x-34 | | 8y-16+xy-2x= | | 36+172.8=F | | -5x-2y=-38 | | 125u=-45 | | 5+35x=20x+41 | | 2x^2+9x=10.125 | | -8-4=F | | =49x^2-70x+25 | | 88-25=b | | 1+2x=5x+22 | | 5j+4s+3t=108 | | 2+4x=5x+22 | | 26+m=47 | | 6x+2=2(x+4)-2 | | b*-3.4=30.94 | | 4=12k | | x^2-2kx+2=0 | | 93=h+15 | | 10.2y=14x-8 | | -7x-4=-8x+8 | | =x^2+18x+81 |

Equations solver categories