If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -0.3x2 + 2.7x + 7 = 0 Reorder the terms: 7 + 2.7x + -0.3x2 = 0 Solving 7 + 2.7x + -0.3x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -0.3 the coefficient of the squared term: Divide each side by '-0.3'. -23.33333333 + -9x + x2 = 0 Move the constant term to the right: Add '23.33333333' to each side of the equation. -23.33333333 + -9x + 23.33333333 + x2 = 0 + 23.33333333 Reorder the terms: -23.33333333 + 23.33333333 + -9x + x2 = 0 + 23.33333333 Combine like terms: -23.33333333 + 23.33333333 = 0.00000000 0.00000000 + -9x + x2 = 0 + 23.33333333 -9x + x2 = 0 + 23.33333333 Combine like terms: 0 + 23.33333333 = 23.33333333 -9x + x2 = 23.33333333 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 = 23.33333333 + 20.25 Reorder the terms: 20.25 + -9x + x2 = 23.33333333 + 20.25 Combine like terms: 23.33333333 + 20.25 = 43.58333333 20.25 + -9x + x2 = 43.58333333 Factor a perfect square on the left side: (x + -4.5)(x + -4.5) = 43.58333333 Calculate the square root of the right side: 6.60176744 Break this problem into two subproblems by setting (x + -4.5) equal to 6.60176744 and -6.60176744.Subproblem 1
x + -4.5 = 6.60176744 Simplifying x + -4.5 = 6.60176744 Reorder the terms: -4.5 + x = 6.60176744 Solving -4.5 + x = 6.60176744 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 = 6.60176744 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + x = 6.60176744 + 4.5 x = 6.60176744 + 4.5 Combine like terms: 6.60176744 + 4.5 = 11.10176744 x = 11.10176744 Simplifying x = 11.10176744Subproblem 2
x + -4.5 = -6.60176744 Simplifying x + -4.5 = -6.60176744 Reorder the terms: -4.5 + x = -6.60176744 Solving -4.5 + x = -6.60176744 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 = -6.60176744 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + x = -6.60176744 + 4.5 x = -6.60176744 + 4.5 Combine like terms: -6.60176744 + 4.5 = -2.10176744 x = -2.10176744 Simplifying x = -2.10176744Solution
The solution to the problem is based on the solutions from the subproblems. x = {11.10176744, -2.10176744}
| 6(x-1)+7=11 | | 9e+4=17e | | D=8000-100p | | 42+1.7x=68.7+.17x | | 9e+8e=17e | | 35=4(p+7)+3 | | 42+2x=68+.2x | | 71.7=2.8u^2+54.7 | | 9x+18=-7x-24 | | 33x+7+8=114 | | −4/9×54=x/5 | | X+X(.15)=230 | | −4/9×54=x/5×−12=x | | 10-9x=4x-16 | | 4a+16-9a=46 | | -6w-4(6x-2w)+2x= | | 20=-6z+32 | | 2t+1=-7 | | 5x-17=4x+11 | | -2(v+4)+3v= | | 103.4=-12(-8.2)+b | | 11/12k=1/6-11/10 | | 49.4=-12(-3.7)+b | | -13u-4=3u^2 | | -12y=5/6 | | 9m-3=6m+15 | | x^2-12x+36=-324 | | 9/4-k/7=9/28 | | 5t=21-2t | | 1/4-2/5=y/20 | | 3p+1=p+19 | | 7y=10-3 |