If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -1x2 + 9x + -5 = 0 Reorder the terms: -5 + 9x + -1x2 = 0 Solving -5 + 9x + -1x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 5 + -9x + x2 = 0 Move the constant term to the right: Add '-5' to each side of the equation. 5 + -9x + -5 + x2 = 0 + -5 Reorder the terms: 5 + -5 + -9x + x2 = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -9x + x2 = 0 + -5 -9x + x2 = 0 + -5 Combine like terms: 0 + -5 = -5 -9x + x2 = -5 The x term is -9x. Take half its coefficient (-4.5). Square it (20.25) and add it to both sides. Add '20.25' to each side of the equation. -9x + 20.25 + x2 = -5 + 20.25 Reorder the terms: 20.25 + -9x + x2 = -5 + 20.25 Combine like terms: -5 + 20.25 = 15.25 20.25 + -9x + x2 = 15.25 Factor a perfect square on the left side: (x + -4.5)(x + -4.5) = 15.25 Calculate the square root of the right side: 3.905124838 Break this problem into two subproblems by setting (x + -4.5) equal to 3.905124838 and -3.905124838.Subproblem 1
x + -4.5 = 3.905124838 Simplifying x + -4.5 = 3.905124838 Reorder the terms: -4.5 + x = 3.905124838 Solving -4.5 + x = 3.905124838 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.5' to each side of the equation. -4.5 + 4.5 + x = 3.905124838 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + x = 3.905124838 + 4.5 x = 3.905124838 + 4.5 Combine like terms: 3.905124838 + 4.5 = 8.405124838 x = 8.405124838 Simplifying x = 8.405124838Subproblem 2
x + -4.5 = -3.905124838 Simplifying x + -4.5 = -3.905124838 Reorder the terms: -4.5 + x = -3.905124838 Solving -4.5 + x = -3.905124838 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.5' to each side of the equation. -4.5 + 4.5 + x = -3.905124838 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + x = -3.905124838 + 4.5 x = -3.905124838 + 4.5 Combine like terms: -3.905124838 + 4.5 = 0.594875162 x = 0.594875162 Simplifying x = 0.594875162Solution
The solution to the problem is based on the solutions from the subproblems. x = {8.405124838, 0.594875162}
| y=4y+2 | | y/9-2=20 | | x(6-3)=21+6x | | -40v+6=-15v-5 | | 6(20-1.5y)+9y=120 | | ln(3x-13)=2 | | 5x-8+2x=-78 | | 6y-21=15 | | x^2+7x+81=0 | | 30x^3+42x^2-5x-7= | | 3x+35=6x+5 | | -50x^2+15x=0 | | -30r^2+25r=0 | | -1/2k=-8 | | 5c+10=-20 | | -9t+2=53 | | 2d-12=92 | | x+30=217 | | 2z=13-27 | | 4x^3+24x^2+20x=0 | | 9g^2+15g-6= | | 2logx+5=1 | | 2080.25/53 | | 12/x=2 | | 1.6(10x+0.4)-2x=50x(0.6) | | 9t^2-25= | | x^2+2(10-x)=68 | | 53/2080.25 | | V^2+5v-50=0 | | 3w^2-6w-24= | | -6(5+5k)=-30-5k | | 18+x-2x=8 |