If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -0.27x2 + 3.3x + 77 = 80 Reorder the terms: 77 + 3.3x + -0.27x2 = 80 Solving 77 + 3.3x + -0.27x2 = 80 Solving for variable 'x'. Reorder the terms: 77 + -80 + 3.3x + -0.27x2 = 80 + -80 Combine like terms: 77 + -80 = -3 -3 + 3.3x + -0.27x2 = 80 + -80 Combine like terms: 80 + -80 = 0 -3 + 3.3x + -0.27x2 = 0 Begin completing the square. Divide all terms by -0.27 the coefficient of the squared term: Divide each side by '-0.27'. 11.11111111 + -12.22222222x + x2 = 0 Move the constant term to the right: Add '-11.11111111' to each side of the equation. 11.11111111 + -12.22222222x + -11.11111111 + x2 = 0 + -11.11111111 Reorder the terms: 11.11111111 + -11.11111111 + -12.22222222x + x2 = 0 + -11.11111111 Combine like terms: 11.11111111 + -11.11111111 = 0.00000000 0.00000000 + -12.22222222x + x2 = 0 + -11.11111111 -12.22222222x + x2 = 0 + -11.11111111 Combine like terms: 0 + -11.11111111 = -11.11111111 -12.22222222x + x2 = -11.11111111 The x term is -12.22222222x. Take half its coefficient (-6.11111111). Square it (37.34567900) and add it to both sides. Add '37.34567900' to each side of the equation. -12.22222222x + 37.34567900 + x2 = -11.11111111 + 37.34567900 Reorder the terms: 37.34567900 + -12.22222222x + x2 = -11.11111111 + 37.34567900 Combine like terms: -11.11111111 + 37.34567900 = 26.23456789 37.34567900 + -12.22222222x + x2 = 26.23456789 Factor a perfect square on the left side: (x + -6.11111111)(x + -6.11111111) = 26.23456789 Calculate the square root of the right side: 5.121969142 Break this problem into two subproblems by setting (x + -6.11111111) equal to 5.121969142 and -5.121969142.Subproblem 1
x + -6.11111111 = 5.121969142 Simplifying x + -6.11111111 = 5.121969142 Reorder the terms: -6.11111111 + x = 5.121969142 Solving -6.11111111 + x = 5.121969142 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.11111111' to each side of the equation. -6.11111111 + 6.11111111 + x = 5.121969142 + 6.11111111 Combine like terms: -6.11111111 + 6.11111111 = 0.00000000 0.00000000 + x = 5.121969142 + 6.11111111 x = 5.121969142 + 6.11111111 Combine like terms: 5.121969142 + 6.11111111 = 11.233080252 x = 11.233080252 Simplifying x = 11.233080252Subproblem 2
x + -6.11111111 = -5.121969142 Simplifying x + -6.11111111 = -5.121969142 Reorder the terms: -6.11111111 + x = -5.121969142 Solving -6.11111111 + x = -5.121969142 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.11111111' to each side of the equation. -6.11111111 + 6.11111111 + x = -5.121969142 + 6.11111111 Combine like terms: -6.11111111 + 6.11111111 = 0.00000000 0.00000000 + x = -5.121969142 + 6.11111111 x = -5.121969142 + 6.11111111 Combine like terms: -5.121969142 + 6.11111111 = 0.989141968 x = 0.989141968 Simplifying x = 0.989141968Solution
The solution to the problem is based on the solutions from the subproblems. x = {11.233080252, 0.989141968}
| 2x+6=11+3x | | n/16=10 | | 7(8x-17)=441441 | | 4a-3b=60 | | x^2+x-1= | | (4a+3)(y+3)=0 | | 3wsquared+22w+7=0 | | -42=7+7x | | -x-7=-42+6x | | -2x^2-28x+98=0 | | 25=v+12 | | 3.5*x=18 | | 7/3*.3= | | -6x-9=79+2x | | (6-z)(4z-5)=0 | | 4sin^2x-4=0 | | 3f+4.3= | | 5(10x-17)=365 | | -3/4=5/7w-3/2 | | 12d-10=8d+16 | | 6x+5+10x-1+6x+5+8x+9+8x+9=360 | | -12x-49=-9x+23 | | 3w-6=-5 | | .25q+.10d=2.75 | | (x^3)-3.5*(x^2)-40=0 | | 4(x-5)+2x=2x-8 | | t^2-7t-10=0 | | 0.1/x=1.1/100 | | 26-1/4 | | -x-91=-6x+24 | | (20x+5)=(24x+5) | | 4x^2-24x=36 |