x^2+2x=793

Simple and best practice solution for x^2+2x=793 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=793 equation:


Simplifying
x2 + 2x = 793

Reorder the terms:
2x + x2 = 793

Solving
2x + x2 = 793

Solving for variable 'x'.

Reorder the terms:
-793 + 2x + x2 = 793 + -793

Combine like terms: 793 + -793 = 0
-793 + 2x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '793' to each side of the equation.
-793 + 2x + 793 + x2 = 0 + 793

Reorder the terms:
-793 + 793 + 2x + x2 = 0 + 793

Combine like terms: -793 + 793 = 0
0 + 2x + x2 = 0 + 793
2x + x2 = 0 + 793

Combine like terms: 0 + 793 = 793
2x + x2 = 793

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 = 793 + 1

Reorder the terms:
1 + 2x + x2 = 793 + 1

Combine like terms: 793 + 1 = 794
1 + 2x + x2 = 794

Factor a perfect square on the left side:
(x + 1)(x + 1) = 794

Calculate the square root of the right side: 28.178005607

Break this problem into two subproblems by setting 
(x + 1) equal to 28.178005607 and -28.178005607.

Subproblem 1

x + 1 = 28.178005607 Simplifying x + 1 = 28.178005607 Reorder the terms: 1 + x = 28.178005607 Solving 1 + x = 28.178005607 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 28.178005607 + -1 Combine like terms: 1 + -1 = 0 0 + x = 28.178005607 + -1 x = 28.178005607 + -1 Combine like terms: 28.178005607 + -1 = 27.178005607 x = 27.178005607 Simplifying x = 27.178005607

Subproblem 2

x + 1 = -28.178005607 Simplifying x + 1 = -28.178005607 Reorder the terms: 1 + x = -28.178005607 Solving 1 + x = -28.178005607 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = -28.178005607 + -1 Combine like terms: 1 + -1 = 0 0 + x = -28.178005607 + -1 x = -28.178005607 + -1 Combine like terms: -28.178005607 + -1 = -29.178005607 x = -29.178005607 Simplifying x = -29.178005607

Solution

The solution to the problem is based on the solutions from the subproblems. x = {27.178005607, -29.178005607}

See similar equations:

| 20-60-3x-6x=41 | | 182/12 | | -16.32+2.4w=2.5w-15.54 | | y-(-2)=(x-0) | | 9x/2=81 | | n+(3n+4)+(4n-9)=67 | | 2=m/7-7 | | 5x-21-10x-10=34 | | Y=8ab | | 97=f-266 | | 24-8y=9 | | 4r+9=-7 | | 100-1/2*9.8*3^2 | | 0=-16t^2+117t+5 | | 16a^2+9=45 | | -10+3x-15+x=7 | | -5x-8x=-8-4x-8x+14 | | 6b+6=-27+32b | | M+429=971 | | tan(x)=0.009 | | -28v+11=-12 | | 17.2v=16.9v-3.45 | | X-.80=16 | | -2/3x*6==1 | | 5x-8-4x=3 | | 2r-2=-2+7r | | R=3(11) | | 1=2/5(4) | | 3-4(3x-1)=15-4x | | 6-5x-3x=12 | | 3x+10y=9 | | -6b-12=b-7-2b |

Equations solver categories