19x^2-18x+1=0

Simple and best practice solution for 19x^2-18x+1=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 19x^2-18x+1=0 equation:


Simplifying
19x2 + -18x + 1 = 0

Reorder the terms:
1 + -18x + 19x2 = 0

Solving
1 + -18x + 19x2 = 0

Solving for variable 'x'.

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

Divide each side by '19'.
0.05263157895 + -0.9473684211x + x2 = 0

Move the constant term to the right:

Add '-0.05263157895' to each side of the equation.
0.05263157895 + -0.9473684211x + -0.05263157895 + x2 = 0 + -0.05263157895

Reorder the terms:
0.05263157895 + -0.05263157895 + -0.9473684211x + x2 = 0 + -0.05263157895

Combine like terms: 0.05263157895 + -0.05263157895 = 0.00000000000
0.00000000000 + -0.9473684211x + x2 = 0 + -0.05263157895
-0.9473684211x + x2 = 0 + -0.05263157895

Combine like terms: 0 + -0.05263157895 = -0.05263157895
-0.9473684211x + x2 = -0.05263157895

The x term is -0.9473684211x.  Take half its coefficient (-0.4736842106).
Square it (0.2243767314) and add it to both sides.

Add '0.2243767314' to each side of the equation.
-0.9473684211x + 0.2243767314 + x2 = -0.05263157895 + 0.2243767314

Reorder the terms:
0.2243767314 + -0.9473684211x + x2 = -0.05263157895 + 0.2243767314

Combine like terms: -0.05263157895 + 0.2243767314 = 0.17174515245
0.2243767314 + -0.9473684211x + x2 = 0.17174515245

Factor a perfect square on the left side:
(x + -0.4736842106)(x + -0.4736842106) = 0.17174515245

Calculate the square root of the right side: 0.414421467

Break this problem into two subproblems by setting 
(x + -0.4736842106) equal to 0.414421467 and -0.414421467.

Subproblem 1

x + -0.4736842106 = 0.414421467 Simplifying x + -0.4736842106 = 0.414421467 Reorder the terms: -0.4736842106 + x = 0.414421467 Solving -0.4736842106 + x = 0.414421467 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4736842106' to each side of the equation. -0.4736842106 + 0.4736842106 + x = 0.414421467 + 0.4736842106 Combine like terms: -0.4736842106 + 0.4736842106 = 0.0000000000 0.0000000000 + x = 0.414421467 + 0.4736842106 x = 0.414421467 + 0.4736842106 Combine like terms: 0.414421467 + 0.4736842106 = 0.8881056776 x = 0.8881056776 Simplifying x = 0.8881056776

Subproblem 2

x + -0.4736842106 = -0.414421467 Simplifying x + -0.4736842106 = -0.414421467 Reorder the terms: -0.4736842106 + x = -0.414421467 Solving -0.4736842106 + x = -0.414421467 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4736842106' to each side of the equation. -0.4736842106 + 0.4736842106 + x = -0.414421467 + 0.4736842106 Combine like terms: -0.4736842106 + 0.4736842106 = 0.0000000000 0.0000000000 + x = -0.414421467 + 0.4736842106 x = -0.414421467 + 0.4736842106 Combine like terms: -0.414421467 + 0.4736842106 = 0.0592627436 x = 0.0592627436 Simplifying x = 0.0592627436

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.8881056776, 0.0592627436}

See similar equations:

| W^2-9w-3=0 | | -2+x/11=2 | | -.4j+6=.6j-1 | | 4=x-1+5 | | x+2/9=2 | | -8=3-(5-y) | | 90=(10x+21)+13x | | 12=10+.5n | | 5a+2a-3=11 | | 11.8x+6-9x=2-x-15 | | 5x-2=-10+3x | | 8(x+4)+2=-38 | | 9(4b-1)=s(9b+3) | | (-10x^2y^2)+(-7x^2y)= | | 0=80+3x-4.9x^2 | | (X+30)-41=17 | | -5(x-2)=5-5x | | 10=2+5x | | (X+10)-41=17 | | 2+[9+3(2)+4(6+1)]= | | 2200m+150=250m+110 | | 3x+1-3=-2 | | 2y-4(6-2y)=36 | | (X+5)-41=17 | | -36x=144 | | W+12=7w | | 250+110m=2200+150m | | -5n+5-3=9-7n+n | | X-41=17 | | 5r+6=-1.5 | | 3x=10x-56 | | 91-(x-4)=16 |

Equations solver categories