If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -1x + -12 = x2 + -3x + 7x + -21 Reorder the terms: -12 + -1x = x2 + -3x + 7x + -21 Reorder the terms: -12 + -1x = -21 + -3x + 7x + x2 Combine like terms: -3x + 7x = 4x -12 + -1x = -21 + 4x + x2 Solving -12 + -1x = -21 + 4x + x2 Solving for variable 'x'. Reorder the terms: -12 + 21 + -1x + -4x + -1x2 = -21 + 4x + x2 + 21 + -4x + -1x2 Combine like terms: -12 + 21 = 9 9 + -1x + -4x + -1x2 = -21 + 4x + x2 + 21 + -4x + -1x2 Combine like terms: -1x + -4x = -5x 9 + -5x + -1x2 = -21 + 4x + x2 + 21 + -4x + -1x2 Reorder the terms: 9 + -5x + -1x2 = -21 + 21 + 4x + -4x + x2 + -1x2 Combine like terms: -21 + 21 = 0 9 + -5x + -1x2 = 0 + 4x + -4x + x2 + -1x2 9 + -5x + -1x2 = 4x + -4x + x2 + -1x2 Combine like terms: 4x + -4x = 0 9 + -5x + -1x2 = 0 + x2 + -1x2 9 + -5x + -1x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 9 + -5x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -9 + 5x + x2 = 0 Move the constant term to the right: Add '9' to each side of the equation. -9 + 5x + 9 + x2 = 0 + 9 Reorder the terms: -9 + 9 + 5x + x2 = 0 + 9 Combine like terms: -9 + 9 = 0 0 + 5x + x2 = 0 + 9 5x + x2 = 0 + 9 Combine like terms: 0 + 9 = 9 5x + x2 = 9 The x term is 5x. Take half its coefficient (2.5). Square it (6.25) and add it to both sides. Add '6.25' to each side of the equation. 5x + 6.25 + x2 = 9 + 6.25 Reorder the terms: 6.25 + 5x + x2 = 9 + 6.25 Combine like terms: 9 + 6.25 = 15.25 6.25 + 5x + x2 = 15.25 Factor a perfect square on the left side: (x + 2.5)(x + 2.5) = 15.25 Calculate the square root of the right side: 3.905124838 Break this problem into two subproblems by setting (x + 2.5) equal to 3.905124838 and -3.905124838.Subproblem 1
x + 2.5 = 3.905124838 Simplifying x + 2.5 = 3.905124838 Reorder the terms: 2.5 + x = 3.905124838 Solving 2.5 + x = 3.905124838 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = 3.905124838 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = 3.905124838 + -2.5 x = 3.905124838 + -2.5 Combine like terms: 3.905124838 + -2.5 = 1.405124838 x = 1.405124838 Simplifying x = 1.405124838Subproblem 2
x + 2.5 = -3.905124838 Simplifying x + 2.5 = -3.905124838 Reorder the terms: 2.5 + x = -3.905124838 Solving 2.5 + x = -3.905124838 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = -3.905124838 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = -3.905124838 + -2.5 x = -3.905124838 + -2.5 Combine like terms: -3.905124838 + -2.5 = -6.405124838 x = -6.405124838 Simplifying x = -6.405124838Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.405124838, -6.405124838}
| -(-2+8)=x | | ln(x)-ln(x-2)-ln(4)=0 | | (5r^2-3r+9)+(-2r^3-r^2+3r)=0 | | -(7+9)=x | | 9x^2-30xy-24y^2=0 | | 7v+20=9(v+2) | | 0.8(x+3)+1.8(x-2)= | | -12+[-(-5)]=x | | -1/8t7 | | 21x^4-50x^3+25x^2=0 | | 3+[-(-8)]=x | | 19+x=2(x+5) | | 3+[-(-8)]= | | 17n*(-4n^2)=0 | | 2k^2+8k-8=0 | | z/3x-5=7 | | 5-b/3ab | | 1/4(11-5x)=x+14-13/8 | | 7/12z=1/6-3/10 | | 4-79= | | 4x+4(-1)+2x=2+4 | | 1/7m=1/14-5/14 | | x^2+6x+9=2x^2+3x-1 | | [-8+5m]=53 | | 25x^2-45x^2-10x=0 | | 9+3(z-3)=-6z+5 | | 5k^2+7k-5=0 | | -4+3=-12+25 | | 3(2z-1)-3(5-4z)=3 | | x+5=-6x-15 | | 23-6x=12-7x | | x+19=2(X+5) |