If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying (-0.8x2) + 2.2x + 9 = 0 Reorder the terms: 9 + 2.2x + (-0.8x2) = 0 Solving 9 + 2.2x + (-0.8x2) = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -0.8 the coefficient of the squared term: Divide each side by '-0.8'. -11.25 + -2.75x + x2 = 0 Move the constant term to the right: Add '11.25' to each side of the equation. -11.25 + -2.75x + 11.25 + x2 = 0 + 11.25 Reorder the terms: -11.25 + 11.25 + -2.75x + x2 = 0 + 11.25 Combine like terms: -11.25 + 11.25 = 0.00 0.00 + -2.75x + x2 = 0 + 11.25 -2.75x + x2 = 0 + 11.25 Combine like terms: 0 + 11.25 = 11.25 -2.75x + x2 = 11.25 The x term is -2.75x. Take half its coefficient (-1.375). Square it (1.890625) and add it to both sides. Add '1.890625' to each side of the equation. -2.75x + 1.890625 + x2 = 11.25 + 1.890625 Reorder the terms: 1.890625 + -2.75x + x2 = 11.25 + 1.890625 Combine like terms: 11.25 + 1.890625 = 13.140625 1.890625 + -2.75x + x2 = 13.140625 Factor a perfect square on the left side: ((x) + -1.375)((x) + -1.375) = 13.140625 Calculate the square root of the right side: 3.625 Break this problem into two subproblems by setting ((x) + -1.375) equal to 3.625 and -3.625.Subproblem 1
(x) + -1.375 = 3.625 Simplifying (x) + -1.375 = 3.625 x + -1.375 = 3.625 Reorder the terms: -1.375 + x = 3.625 Solving -1.375 + x = 3.625 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.375' to each side of the equation. -1.375 + 1.375 + x = 3.625 + 1.375 Combine like terms: -1.375 + 1.375 = 0.000 0.000 + x = 3.625 + 1.375 x = 3.625 + 1.375 Combine like terms: 3.625 + 1.375 = 5 x = 5 Simplifying x = 5Subproblem 2
(x) + -1.375 = -3.625 Simplifying (x) + -1.375 = -3.625 x + -1.375 = -3.625 Reorder the terms: -1.375 + x = -3.625 Solving -1.375 + x = -3.625 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.375' to each side of the equation. -1.375 + 1.375 + x = -3.625 + 1.375 Combine like terms: -1.375 + 1.375 = 0.000 0.000 + x = -3.625 + 1.375 x = -3.625 + 1.375 Combine like terms: -3.625 + 1.375 = -2.25 x = -2.25 Simplifying x = -2.25Solution
The solution to the problem is based on the solutions from the subproblems. x = {5, -2.25}
| (x+5)+y=75 | | ab+1ab+ac=ab+ac | | 17x-16=9x+40 | | 0/6x | | 3z-2/5=7 | | x/3=2=20 | | 12-23=8x+1 | | 2sec^2x=3+tanx | | 3z-2/2=7 | | x+0.275x=15 | | 6y-13=3y+5 | | 16y-13=3y+5 | | 6c-35=c+10 | | 9f=7 | | 6w^2-24w-24=0 | | 735-x-5y=10z | | a-4/2=6 | | 12-3/2x=37 | | 3[x+7]=9 | | x^4-2x^3-2x-1=0 | | 6x+4=7x-88 | | 5[x+1]=35 | | 3=((6x^2-x^3)/6)/x | | 16x^2/9x^8 | | x^4/(x^3-1) | | 2[x-4]=8 | | 2n^2-130n=0 | | 12z+5y=735 | | 20-2y+3*x=z | | 20-2y+3+x=z | | 4q-2p=200 | | 2[x-3]=7 |