3.6x^2-5x+28=0

Simple and best practice solution for 3.6x^2-5x+28=0 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 3.6x^2-5x+28=0 equation:


Simplifying
3.6x2 + -5x + 28 = 0

Reorder the terms:
28 + -5x + 3.6x2 = 0

Solving
28 + -5x + 3.6x2 = 0

Solving for variable 'x'.

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

Divide each side by '3.6'.
7.777777778 + -1.388888889x + x2 = 0

Move the constant term to the right:

Add '-7.777777778' to each side of the equation.
7.777777778 + -1.388888889x + -7.777777778 + x2 = 0 + -7.777777778

Reorder the terms:
7.777777778 + -7.777777778 + -1.388888889x + x2 = 0 + -7.777777778

Combine like terms: 7.777777778 + -7.777777778 = 0.000000000
0.000000000 + -1.388888889x + x2 = 0 + -7.777777778
-1.388888889x + x2 = 0 + -7.777777778

Combine like terms: 0 + -7.777777778 = -7.777777778
-1.388888889x + x2 = -7.777777778

The x term is -1.388888889x.  Take half its coefficient (-0.6944444445).
Square it (0.4822530865) and add it to both sides.

Add '0.4822530865' to each side of the equation.
-1.388888889x + 0.4822530865 + x2 = -7.777777778 + 0.4822530865

Reorder the terms:
0.4822530865 + -1.388888889x + x2 = -7.777777778 + 0.4822530865

Combine like terms: -7.777777778 + 0.4822530865 = -7.2955246915
0.4822530865 + -1.388888889x + x2 = -7.2955246915

Factor a perfect square on the left side:
(x + -0.6944444445)(x + -0.6944444445) = -7.2955246915

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 2-3(x-7)=5x+4 | | 3.60/2.80 | | 40/80 | | log(4+X)=1.9 | | (7x+3)=(2x+3) | | 2(x+1)+4=6x-4(-2+x) | | 7(2n-3)=(8n+9)+6 | | 7(2n-2)=(5n+9)+3 | | 3(2n-5)=(8n+9)+8 | | 7x+3+-12+2x= | | -[8]+[9]= | | 2.25/1.5 | | (m+n)y=m | | 96x-6x^5= | | -6+6=41 | | 1/5x4/1000 | | 1/5•4/1000 | | 4p+2d=17 | | 36=c^2-5c | | 9x-49=18x | | 2x-2+9=2420 | | 2-3x-40= | | 2+13x+36= | | 2+8x+15= | | 270/36 | | 2+11x+18= | | 600/112 | | 6/72 | | 1.2*x^2+2*x=0 | | x-10+6=0 | | 225/18 | | 182/48 |

Equations solver categories