x^2+18x-29=0

Simple and best practice solution for x^2+18x-29=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+18x-29=0 equation:


Simplifying
x2 + 18x + -29 = 0

Reorder the terms:
-29 + 18x + x2 = 0

Solving
-29 + 18x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '29' to each side of the equation.
-29 + 18x + 29 + x2 = 0 + 29

Reorder the terms:
-29 + 29 + 18x + x2 = 0 + 29

Combine like terms: -29 + 29 = 0
0 + 18x + x2 = 0 + 29
18x + x2 = 0 + 29

Combine like terms: 0 + 29 = 29
18x + x2 = 29

The x term is 18x.  Take half its coefficient (9).
Square it (81) and add it to both sides.

Add '81' to each side of the equation.
18x + 81 + x2 = 29 + 81

Reorder the terms:
81 + 18x + x2 = 29 + 81

Combine like terms: 29 + 81 = 110
81 + 18x + x2 = 110

Factor a perfect square on the left side:
(x + 9)(x + 9) = 110

Calculate the square root of the right side: 10.488088482

Break this problem into two subproblems by setting 
(x + 9) equal to 10.488088482 and -10.488088482.

Subproblem 1

x + 9 = 10.488088482 Simplifying x + 9 = 10.488088482 Reorder the terms: 9 + x = 10.488088482 Solving 9 + x = 10.488088482 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + x = 10.488088482 + -9 Combine like terms: 9 + -9 = 0 0 + x = 10.488088482 + -9 x = 10.488088482 + -9 Combine like terms: 10.488088482 + -9 = 1.488088482 x = 1.488088482 Simplifying x = 1.488088482

Subproblem 2

x + 9 = -10.488088482 Simplifying x + 9 = -10.488088482 Reorder the terms: 9 + x = -10.488088482 Solving 9 + x = -10.488088482 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + x = -10.488088482 + -9 Combine like terms: 9 + -9 = 0 0 + x = -10.488088482 + -9 x = -10.488088482 + -9 Combine like terms: -10.488088482 + -9 = -19.488088482 x = -19.488088482 Simplifying x = -19.488088482

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.488088482, -19.488088482}

See similar equations:

| 6x^2+4x+1=0 | | x+(-81)=157 | | 78+n-45=785 | | 3r+2t=15 | | 5(2x-7)+3=28 | | -5.6(4t+6)-1.5(3t-5)= | | x-(-5)=-11.2 | | -3j^2-54j+15=0 | | p(x)=.04x^2-3x+2x^08-5200 | | 18y=36-2x | | 150-3x=24+21 | | 3/2-6 | | y/15-3=9 | | 3+3n=-7(5n+5) | | 5z+6+z+8= | | c=135+52(3.25) | | 12-10x=24x+21 | | 3x^2-16x-13=0 | | k^2+12k+23=0 | | 3x+6x=-85-10x | | (7(x+8))+1.07=343.47 | | 5(x-1)=140/14 | | k^2+26k+19=0 | | 4-2x=x-8 | | -3-3x=-3(3x+7) | | (2x+60)-(x+8)=40 | | 6g+88=9g-25 | | 2500u^7x^6/80u^5x^3 | | x^4-25=o | | 85-6x=12-8x | | k^2+26k=-29 | | 2(2j+10)=6j+4 |

Equations solver categories