If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying (x + 1) = x2 + -9x + 21 Reorder the terms: (1 + x) = x2 + -9x + 21 Remove parenthesis around (1 + x) 1 + x = x2 + -9x + 21 Reorder the terms: 1 + x = 21 + -9x + x2 Solving 1 + x = 21 + -9x + x2 Solving for variable 'x'. Reorder the terms: 1 + -21 + x + 9x + -1x2 = 21 + -9x + x2 + -21 + 9x + -1x2 Combine like terms: 1 + -21 = -20 -20 + x + 9x + -1x2 = 21 + -9x + x2 + -21 + 9x + -1x2 Combine like terms: x + 9x = 10x -20 + 10x + -1x2 = 21 + -9x + x2 + -21 + 9x + -1x2 Reorder the terms: -20 + 10x + -1x2 = 21 + -21 + -9x + 9x + x2 + -1x2 Combine like terms: 21 + -21 = 0 -20 + 10x + -1x2 = 0 + -9x + 9x + x2 + -1x2 -20 + 10x + -1x2 = -9x + 9x + x2 + -1x2 Combine like terms: -9x + 9x = 0 -20 + 10x + -1x2 = 0 + x2 + -1x2 -20 + 10x + -1x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -20 + 10x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 20 + -10x + x2 = 0 Move the constant term to the right: Add '-20' to each side of the equation. 20 + -10x + -20 + x2 = 0 + -20 Reorder the terms: 20 + -20 + -10x + x2 = 0 + -20 Combine like terms: 20 + -20 = 0 0 + -10x + x2 = 0 + -20 -10x + x2 = 0 + -20 Combine like terms: 0 + -20 = -20 -10x + x2 = -20 The x term is -10x. Take half its coefficient (-5). Square it (25) and add it to both sides. Add '25' to each side of the equation. -10x + 25 + x2 = -20 + 25 Reorder the terms: 25 + -10x + x2 = -20 + 25 Combine like terms: -20 + 25 = 5 25 + -10x + x2 = 5 Factor a perfect square on the left side: (x + -5)(x + -5) = 5 Calculate the square root of the right side: 2.236067978 Break this problem into two subproblems by setting (x + -5) equal to 2.236067978 and -2.236067978.Subproblem 1
x + -5 = 2.236067978 Simplifying x + -5 = 2.236067978 Reorder the terms: -5 + x = 2.236067978 Solving -5 + x = 2.236067978 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = 2.236067978 + 5 Combine like terms: -5 + 5 = 0 0 + x = 2.236067978 + 5 x = 2.236067978 + 5 Combine like terms: 2.236067978 + 5 = 7.236067978 x = 7.236067978 Simplifying x = 7.236067978Subproblem 2
x + -5 = -2.236067978 Simplifying x + -5 = -2.236067978 Reorder the terms: -5 + x = -2.236067978 Solving -5 + x = -2.236067978 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = -2.236067978 + 5 Combine like terms: -5 + 5 = 0 0 + x = -2.236067978 + 5 x = -2.236067978 + 5 Combine like terms: -2.236067978 + 5 = 2.763932022 x = 2.763932022 Simplifying x = 2.763932022Solution
The solution to the problem is based on the solutions from the subproblems. x = {7.236067978, 2.763932022}
| x^3+2x^2+x-18=0 | | n^2+9n+108=0 | | h()=-2 | | 6(x+3)=12-12(x) | | 1+x=3-x | | X^2+6x-7=x^2+2x+1 | | 2m+7-7m=10+2m+18 | | 7+3(6-x)=43-3(x+6) | | -(s+13)+2s-3=-3 | | 2m+7m-7m=10+2m+18 | | 15(3+1)=75 | | 4m/2m^-3 | | (27x5+9x4-18x3)/9x2 | | 15z-14(z-6)+10=105 | | 6x^2+5x-8x=-4 | | 3x+2=44 | | 5.3x-8.1=7.95-5.4x | | 5x+7x=3+6x-36 | | 5z-3z-4=-7 | | (x-2)(x^2+4x+9)=0 | | 9w=8w-12 | | 4x+14=x+60 | | j(7)=2(7)+9 | | 2v+3/7=24-9v+3/4 | | x^2-7x-3/4=0 | | 7y=6y+2 | | a/0+4/15=9/15 | | X^2-8x=28-3x | | x/3+31/3=4r-3/4 | | x^(4/3)=1296 | | X^2-8v-16=12-3x | | 3w-16=5(w-6) |