80=4x-x^2

Simple and best practice solution for 80=4x-x^2 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 80=4x-x^2 equation:


Simplifying
80 = 4x + -1x2

Solving
80 = 4x + -1x2

Solving for variable 'x'.

Reorder the terms:
80 + -4x + x2 = 4x + -4x + -1x2 + x2

Combine like terms: 4x + -4x = 0
80 + -4x + x2 = 0 + -1x2 + x2
80 + -4x + x2 = -1x2 + x2

Combine like terms: -1x2 + x2 = 0
80 + -4x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-80' to each side of the equation.
80 + -4x + -80 + x2 = 0 + -80

Reorder the terms:
80 + -80 + -4x + x2 = 0 + -80

Combine like terms: 80 + -80 = 0
0 + -4x + x2 = 0 + -80
-4x + x2 = 0 + -80

Combine like terms: 0 + -80 = -80
-4x + x2 = -80

The x term is -4x.  Take half its coefficient (-2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
-4x + 4 + x2 = -80 + 4

Reorder the terms:
4 + -4x + x2 = -80 + 4

Combine like terms: -80 + 4 = -76
4 + -4x + x2 = -76

Factor a perfect square on the left side:
(x + -2)(x + -2) = -76

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 16n*2-16n+3=0 | | 3(5x+2)=32 | | 8x-2x^2=6 | | 6x+8-2x=14-15x-16 | | 9x=6a-27 | | 3g+7=2g+13 | | 4x-x^2=3 | | 10x+2=-2 | | z^8+4z^4+5=0 | | 3m+8=13 | | 1/x-2+1/x=8/2x+5 | | 3x^3=9 | | 977+951+927+907+887+863+840+819+791+766+736+705+674+644+612+580+547+524+483+451+413+363+309+256+208+158= | | 4x/20=5x/25 | | 40x^2+96x+10=0 | | 5x/25=4x/20 | | f(x)=5x^4-6x+7 | | x^2+2x+3=5 | | t^2+10t-130=0 | | x^2+y+3=5 | | abs(5X-3)=abs(8-3X) | | 5x-45=2x-12 | | 14/x+2=70 | | t^2-4t+2=0 | | 3x-5(3)=15 | | 1*9x-5=0 | | -17+-4x=13+9x | | -15-5y=15 | | 7+13t-2=9t+68-3t | | 1/9x-5 | | .8(x+60)+.4x=84 | | x-0=-4 |

Equations solver categories