64+4x-x^2=0

Simple and best practice solution for 64+4x-x^2=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 64+4x-x^2=0 equation:


Simplifying
64 + 4x + -1x2 = 0

Solving
64 + 4x + -1x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-64 + -4x + x2 = 0

Move the constant term to the right:

Add '64' to each side of the equation.
-64 + -4x + 64 + x2 = 0 + 64

Reorder the terms:
-64 + 64 + -4x + x2 = 0 + 64

Combine like terms: -64 + 64 = 0
0 + -4x + x2 = 0 + 64
-4x + x2 = 0 + 64

Combine like terms: 0 + 64 = 64
-4x + x2 = 64

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 = 64 + 4

Reorder the terms:
4 + -4x + x2 = 64 + 4

Combine like terms: 64 + 4 = 68
4 + -4x + x2 = 68

Factor a perfect square on the left side:
(x + -2)(x + -2) = 68

Calculate the square root of the right side: 8.246211251

Break this problem into two subproblems by setting 
(x + -2) equal to 8.246211251 and -8.246211251.

Subproblem 1

x + -2 = 8.246211251 Simplifying x + -2 = 8.246211251 Reorder the terms: -2 + x = 8.246211251 Solving -2 + x = 8.246211251 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = 8.246211251 + 2 Combine like terms: -2 + 2 = 0 0 + x = 8.246211251 + 2 x = 8.246211251 + 2 Combine like terms: 8.246211251 + 2 = 10.246211251 x = 10.246211251 Simplifying x = 10.246211251

Subproblem 2

x + -2 = -8.246211251 Simplifying x + -2 = -8.246211251 Reorder the terms: -2 + x = -8.246211251 Solving -2 + x = -8.246211251 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = -8.246211251 + 2 Combine like terms: -2 + 2 = 0 0 + x = -8.246211251 + 2 x = -8.246211251 + 2 Combine like terms: -8.246211251 + 2 = -6.246211251 x = -6.246211251 Simplifying x = -6.246211251

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.246211251, -6.246211251}

See similar equations:

| 40x+5=30 | | 3b=-18 | | 6x-3=2y-3 | | 0.8+0.4y=1.2 | | 18+(-12)+15= | | x^2y+2xy^2= | | -6-8-9= | | -9x+6+7x=-2x+11 | | 16-30x=0 | | -12=-7-7-7.5 | | -3+7=37 | | -10=14+14 | | 5y=4y-5 | | -12=-7-77.5s | | (w+1)(w-6)= | | (-2)x(-2)x(-2)= | | 5p+6=(-4p)-8 | | -41=2-7 | | 2v+18=16-4(v+1) | | 189-x=3(90-x) | | 5(x-2)+x=6x+3-4x | | 6x-35+3x+37=180 | | 9+2(x+5)=-3(3x+12) | | 2x-1=7+44 | | 12-3(4w+1)=7w-3(7+w) | | s-10=20.51 | | 4x-x+16=5(x+0) | | -6-8m=2(7m-3) | | 6p-2-3p=-1 | | 0.5x+2.5=0.8x+2 | | 7x-12=3x-48 | | 18+(12)+5= |

Equations solver categories