0=-3x^2+55x+2

Simple and best practice solution for 0=-3x^2+55x+2 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 0=-3x^2+55x+2 equation:


Simplifying
0 = -3x2 + 55x + 2

Reorder the terms:
0 = 2 + 55x + -3x2

Solving
0 = 2 + 55x + -3x2

Solving for variable 'x'.

Combine like terms: 0 + -2 = -2
-2 + -55x + 3x2 = 2 + 55x + -3x2 + -2 + -55x + 3x2

Reorder the terms:
-2 + -55x + 3x2 = 2 + -2 + 55x + -55x + -3x2 + 3x2

Combine like terms: 2 + -2 = 0
-2 + -55x + 3x2 = 0 + 55x + -55x + -3x2 + 3x2
-2 + -55x + 3x2 = 55x + -55x + -3x2 + 3x2

Combine like terms: 55x + -55x = 0
-2 + -55x + 3x2 = 0 + -3x2 + 3x2
-2 + -55x + 3x2 = -3x2 + 3x2

Combine like terms: -3x2 + 3x2 = 0
-2 + -55x + 3x2 = 0

Begin completing the square.  Divide all terms by
3 the coefficient of the squared term: 

Divide each side by '3'.
-0.6666666667 + -18.33333333x + x2 = 0

Move the constant term to the right:

Add '0.6666666667' to each side of the equation.
-0.6666666667 + -18.33333333x + 0.6666666667 + x2 = 0 + 0.6666666667

Reorder the terms:
-0.6666666667 + 0.6666666667 + -18.33333333x + x2 = 0 + 0.6666666667

Combine like terms: -0.6666666667 + 0.6666666667 = 0.0000000000
0.0000000000 + -18.33333333x + x2 = 0 + 0.6666666667
-18.33333333x + x2 = 0 + 0.6666666667

Combine like terms: 0 + 0.6666666667 = 0.6666666667
-18.33333333x + x2 = 0.6666666667

The x term is -18.33333333x.  Take half its coefficient (-9.166666665).
Square it (84.02777775) and add it to both sides.

Add '84.02777775' to each side of the equation.
-18.33333333x + 84.02777775 + x2 = 0.6666666667 + 84.02777775

Reorder the terms:
84.02777775 + -18.33333333x + x2 = 0.6666666667 + 84.02777775

Combine like terms: 0.6666666667 + 84.02777775 = 84.6944444167
84.02777775 + -18.33333333x + x2 = 84.6944444167

Factor a perfect square on the left side:
(x + -9.166666665)(x + -9.166666665) = 84.6944444167

Calculate the square root of the right side: 9.20295846

Break this problem into two subproblems by setting 
(x + -9.166666665) equal to 9.20295846 and -9.20295846.

Subproblem 1

x + -9.166666665 = 9.20295846 Simplifying x + -9.166666665 = 9.20295846 Reorder the terms: -9.166666665 + x = 9.20295846 Solving -9.166666665 + x = 9.20295846 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9.166666665' to each side of the equation. -9.166666665 + 9.166666665 + x = 9.20295846 + 9.166666665 Combine like terms: -9.166666665 + 9.166666665 = 0.000000000 0.000000000 + x = 9.20295846 + 9.166666665 x = 9.20295846 + 9.166666665 Combine like terms: 9.20295846 + 9.166666665 = 18.369625125 x = 18.369625125 Simplifying x = 18.369625125

Subproblem 2

x + -9.166666665 = -9.20295846 Simplifying x + -9.166666665 = -9.20295846 Reorder the terms: -9.166666665 + x = -9.20295846 Solving -9.166666665 + x = -9.20295846 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9.166666665' to each side of the equation. -9.166666665 + 9.166666665 + x = -9.20295846 + 9.166666665 Combine like terms: -9.166666665 + 9.166666665 = 0.000000000 0.000000000 + x = -9.20295846 + 9.166666665 x = -9.20295846 + 9.166666665 Combine like terms: -9.20295846 + 9.166666665 = -0.036291795 x = -0.036291795 Simplifying x = -0.036291795

Solution

The solution to the problem is based on the solutions from the subproblems. x = {18.369625125, -0.036291795}

See similar equations:

| (h-3/5)²=1/2 | | 90=6a+3s | | 0=-5x^2+8x-3 | | 3+14x=-9 | | 6+9x=5x | | -3=7(y-9/7) | | 0=-x^2-5x-6 | | sin(5x)/2x | | 58x+93y=1 | | 38+38+x=180 | | (-4)=-3x^2+5x | | 620=4x+8y | | U=4(3n+30)+5(n+1) | | 7x+3(2x+5)=10x+7 | | 10x/2=0.01 | | x+y^2=25 | | -8x+y=-4 | | (-3)=-2x-3 | | x^3-2x^2-51x-108=0 | | x+9-x+5= | | 0.5*x+x+0.125*x+1.5*x=0 | | x^3-2x^2-51-108=0 | | 3(x+7)=2xpmdasrule | | -8=-4/5v | | 9=-3/4m | | f(-3)=2x^2+4x+10 | | 30!/(30-2)!2! | | x*7.07=40 | | 1y+3=2 | | y*7.07=40 | | y=1.38x-0.52 | | 6+8x-7=-x |

Equations solver categories