If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + 18x + 81 = 5 Reorder the terms: 81 + 18x + x2 = 5 Solving 81 + 18x + x2 = 5 Solving for variable 'x'. Reorder the terms: 81 + -5 + 18x + x2 = 5 + -5 Combine like terms: 81 + -5 = 76 76 + 18x + x2 = 5 + -5 Combine like terms: 5 + -5 = 0 76 + 18x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-76' to each side of the equation. 76 + 18x + -76 + x2 = 0 + -76 Reorder the terms: 76 + -76 + 18x + x2 = 0 + -76 Combine like terms: 76 + -76 = 0 0 + 18x + x2 = 0 + -76 18x + x2 = 0 + -76 Combine like terms: 0 + -76 = -76 18x + x2 = -76 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 = -76 + 81 Reorder the terms: 81 + 18x + x2 = -76 + 81 Combine like terms: -76 + 81 = 5 81 + 18x + x2 = 5 Factor a perfect square on the left side: (x + 9)(x + 9) = 5 Calculate the square root of the right side: 2.236067978 Break this problem into two subproblems by setting (x + 9) equal to 2.236067978 and -2.236067978.Subproblem 1
x + 9 = 2.236067978 Simplifying x + 9 = 2.236067978 Reorder the terms: 9 + x = 2.236067978 Solving 9 + x = 2.236067978 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 = 2.236067978 + -9 Combine like terms: 9 + -9 = 0 0 + x = 2.236067978 + -9 x = 2.236067978 + -9 Combine like terms: 2.236067978 + -9 = -6.763932022 x = -6.763932022 Simplifying x = -6.763932022Subproblem 2
x + 9 = -2.236067978 Simplifying x + 9 = -2.236067978 Reorder the terms: 9 + x = -2.236067978 Solving 9 + x = -2.236067978 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 = -2.236067978 + -9 Combine like terms: 9 + -9 = 0 0 + x = -2.236067978 + -9 x = -2.236067978 + -9 Combine like terms: -2.236067978 + -9 = -11.236067978 x = -11.236067978 Simplifying x = -11.236067978Solution
The solution to the problem is based on the solutions from the subproblems. x = {-6.763932022, -11.236067978}
| 4x^3-6x^2-28x=0 | | 42=3/5x+12 | | 5-0.5=1.6x+2 | | -n50/p | | 4s^2+8s-1=0 | | 4x^2-7x+3.1=5.1 | | (x-3+3i)(x-3-3i)=0 | | 4x-7=-8x+5 | | 0-2+2y=0 | | -6(3m+5)=5(2m+3)+8 | | 3/4x=14-x | | 16y^3+16y^2+3y=0 | | -2(2x)--2(3)=-2 | | (-5x-3)=3x+5 | | -3x-4=2x-4 | | (x-3)(x-2)=56 | | 7x+5=-x+13 | | 8x-14y=5 | | 12y+156= | | 5(2y+2)-6(5y-15)=20 | | 26-65.8= | | 405x+-84x^2+4x^3=0 | | x(27-2x)(15-2x)=0 | | g(3)=8(3)+2 | | sqrt(x+3)-5=1 | | X+1*x=60 | | 8(5x-8)=144 | | -3x+7=2x+17 | | 6-f-f^2=0 | | 15y^3=2y^2+8y | | 4x^3+17x^2+15x=0 | | c^2-6cd+9d^2= |