If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 80 = x2 + 10x Reorder the terms: 80 = 10x + x2 Solving 80 = 10x + x2 Solving for variable 'x'. Reorder the terms: 80 + -10x + -1x2 = 10x + -10x + x2 + -1x2 Combine like terms: 10x + -10x = 0 80 + -10x + -1x2 = 0 + x2 + -1x2 80 + -10x + -1x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 80 + -10x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -80 + 10x + x2 = 0 Move the constant term to the right: Add '80' to each side of the equation. -80 + 10x + 80 + x2 = 0 + 80 Reorder the terms: -80 + 80 + 10x + x2 = 0 + 80 Combine like terms: -80 + 80 = 0 0 + 10x + x2 = 0 + 80 10x + x2 = 0 + 80 Combine like terms: 0 + 80 = 80 10x + x2 = 80 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 = 80 + 25 Reorder the terms: 25 + 10x + x2 = 80 + 25 Combine like terms: 80 + 25 = 105 25 + 10x + x2 = 105 Factor a perfect square on the left side: (x + 5)(x + 5) = 105 Calculate the square root of the right side: 10.246950766 Break this problem into two subproblems by setting (x + 5) equal to 10.246950766 and -10.246950766.Subproblem 1
x + 5 = 10.246950766 Simplifying x + 5 = 10.246950766 Reorder the terms: 5 + x = 10.246950766 Solving 5 + x = 10.246950766 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 = 10.246950766 + -5 Combine like terms: 5 + -5 = 0 0 + x = 10.246950766 + -5 x = 10.246950766 + -5 Combine like terms: 10.246950766 + -5 = 5.246950766 x = 5.246950766 Simplifying x = 5.246950766Subproblem 2
x + 5 = -10.246950766 Simplifying x + 5 = -10.246950766 Reorder the terms: 5 + x = -10.246950766 Solving 5 + x = -10.246950766 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 = -10.246950766 + -5 Combine like terms: 5 + -5 = 0 0 + x = -10.246950766 + -5 x = -10.246950766 + -5 Combine like terms: -10.246950766 + -5 = -15.246950766 x = -15.246950766 Simplifying x = -15.246950766Solution
The solution to the problem is based on the solutions from the subproblems. x = {5.246950766, -15.246950766}
| x+x+2+x+4=56 | | 34-3p=16 | | 50-5p=9 | | 12y+30=50 | | 1000x-5=16 | | a/5-1=-4 | | f(x)=4x^2-25 | | 6x^2=12x^4 | | 6x^2=-12x^4 | | x^2-13x+4.47=0 | | 4=x/2-5 | | 340=520-z | | 5x/6=1/4 | | Log5((x-4)/x)=1 | | 13n+5-4x=23 | | x+2+3x+4=30 | | 3p/2=9 | | 5y^2-15y= | | 3x^2+21=-18x | | (25x^2)-30x+9=81 | | 3x^2-4x-2/3 | | 3x-5y(7x+y)=b | | 2r+3=5 | | x+x+4x+1=100 | | 4b-100=-b+10 | | 4n-(4+n)=17 | | 7=9+-8n | | 8x+x=151300 | | 18=6q | | 256/2/2/2/2 | | 30y-10y+2y-3y+4y-5y= | | -3x-1x/2x-5 |