x^2+2x-41=

Simple and best practice solution for x^2+2x-41= 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-41= equation:


Simplifying
x2 + 2x + -41 = 0

Reorder the terms:
-41 + 2x + x2 = 0

Solving
-41 + 2x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '41' to each side of the equation.
-41 + 2x + 41 + x2 = 0 + 41

Reorder the terms:
-41 + 41 + 2x + x2 = 0 + 41

Combine like terms: -41 + 41 = 0
0 + 2x + x2 = 0 + 41
2x + x2 = 0 + 41

Combine like terms: 0 + 41 = 41
2x + x2 = 41

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 = 41 + 1

Reorder the terms:
1 + 2x + x2 = 41 + 1

Combine like terms: 41 + 1 = 42
1 + 2x + x2 = 42

Factor a perfect square on the left side:
(x + 1)(x + 1) = 42

Calculate the square root of the right side: 6.480740698

Break this problem into two subproblems by setting 
(x + 1) equal to 6.480740698 and -6.480740698.

Subproblem 1

x + 1 = 6.480740698 Simplifying x + 1 = 6.480740698 Reorder the terms: 1 + x = 6.480740698 Solving 1 + x = 6.480740698 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 = 6.480740698 + -1 Combine like terms: 1 + -1 = 0 0 + x = 6.480740698 + -1 x = 6.480740698 + -1 Combine like terms: 6.480740698 + -1 = 5.480740698 x = 5.480740698 Simplifying x = 5.480740698

Subproblem 2

x + 1 = -6.480740698 Simplifying x + 1 = -6.480740698 Reorder the terms: 1 + x = -6.480740698 Solving 1 + x = -6.480740698 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 = -6.480740698 + -1 Combine like terms: 1 + -1 = 0 0 + x = -6.480740698 + -1 x = -6.480740698 + -1 Combine like terms: -6.480740698 + -1 = -7.480740698 x = -7.480740698 Simplifying x = -7.480740698

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.480740698, -7.480740698}

See similar equations:

| 2x+3=3(x+7) | | 2cos(c)+4=5 | | 200(0)=1/98(0)^2 | | (-11)-(-1)= | | 12q-9=8q+14 | | (3x^2+5x-6)-(-2x^2-6x+7)=0 | | 2r^2+24r-90=0 | | 18x-9x=9x | | 10(x-8)=-147 | | m-325=399 | | -10(5x+5)+11(3x-3)=x+1+6 | | 40/0.8 | | x^6=1.2 | | -6(4r+1)-9r=-r-5(7r+9) | | -2(1-9b)=-8+5(3b-12) | | lg(x+10)=lg(6x) | | 1/4=16 | | F(270)=3sinx | | 6(-12-5n)=-8(-9+4n)-4n | | 2.6-(4.82)= | | (2x-2y-x^2+2xy)dx+(2x^2-4xy-2x)dy=0 | | -8(6x-5)=-12(4x-12)+12 | | 15/-5 | | 2pi(8r)+2pi(r^2)=40pi | | 2x+6y=2x+2y | | 2m+12=3m-3 | | r^2+8r=10 | | 7x^3-17x^2+10x= | | -12r-4(-3r-1)=4(r+3) | | 25-2x=1 | | 20x^3+8x^2-64x= | | 12x^3+6x^2-4x= |

Equations solver categories