x^2+2x-46=0

Simple and best practice solution for x^2+2x-46=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 x^2+2x-46=0 equation:


Simplifying
x2 + 2x + -46 = 0

Reorder the terms:
-46 + 2x + x2 = 0

Solving
-46 + 2x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '46' to each side of the equation.
-46 + 2x + 46 + x2 = 0 + 46

Reorder the terms:
-46 + 46 + 2x + x2 = 0 + 46

Combine like terms: -46 + 46 = 0
0 + 2x + x2 = 0 + 46
2x + x2 = 0 + 46

Combine like terms: 0 + 46 = 46
2x + x2 = 46

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 = 46 + 1

Reorder the terms:
1 + 2x + x2 = 46 + 1

Combine like terms: 46 + 1 = 47
1 + 2x + x2 = 47

Factor a perfect square on the left side:
(x + 1)(x + 1) = 47

Calculate the square root of the right side: 6.8556546

Break this problem into two subproblems by setting 
(x + 1) equal to 6.8556546 and -6.8556546.

Subproblem 1

x + 1 = 6.8556546 Simplifying x + 1 = 6.8556546 Reorder the terms: 1 + x = 6.8556546 Solving 1 + x = 6.8556546 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 = 6.8556546 + -1 Combine like terms: 1 + -1 = 0 0 + x = 6.8556546 + -1 x = 6.8556546 + -1 Combine like terms: 6.8556546 + -1 = 5.8556546 x = 5.8556546 Simplifying x = 5.8556546

Subproblem 2

x + 1 = -6.8556546 Simplifying x + 1 = -6.8556546 Reorder the terms: 1 + x = -6.8556546 Solving 1 + x = -6.8556546 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 = -6.8556546 + -1 Combine like terms: 1 + -1 = 0 0 + x = -6.8556546 + -1 x = -6.8556546 + -1 Combine like terms: -6.8556546 + -1 = -7.8556546 x = -7.8556546 Simplifying x = -7.8556546

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.8556546, -7.8556546}

See similar equations:

| 9(v+3)-3v=2(3v+4)-14 | | 5y-33=50 | | (8x-9)=(7x+7) | | 10x-25y= | | 1/2X1/2X1/2 | | 9x+21=2x-14 | | -4=8-(-5-p) | | 24x^2+240x-x^3=0 | | 2y-90=180 | | 1.5x+19.00=2.75x+15.00 | | 22.5=(22.5+.05x)-(.05(22.5+.05x)) | | 12x-7=57 | | lob(50x)-log(x-1)=2 | | f(x)=20(0.5)x | | y=1+1.6x | | 4a-2b-1=0 | | M-17=-(4m-13) | | 2y+x+13+90=180 | | (2px-7)(xt+1)= | | -x^3+24x^2+240x=0 | | -8x-8(6x+2)=40 | | -x^3+49x-50=0 | | x^2-6x-27=-11 | | (3x+2p)(x^3-3)= | | 6+12m=-90 | | 49+5y-4=16y-11-3y | | 27p=2p+5 | | 2x^2+3=10-13x | | x=5y+0 | | 19/5-5/12 | | (-10)-3x=3x+2 | | x^3-49x-50=0 |

Equations solver categories