19x^2-47x+11=0

Simple and best practice solution for 19x^2-47x+11=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^2-47x+11=0 equation:


Simplifying
19x2 + -47x + 11 = 0

Reorder the terms:
11 + -47x + 19x2 = 0

Solving
11 + -47x + 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'.
0.5789473684 + -2.473684211x + x2 = 0

Move the constant term to the right:

Add '-0.5789473684' to each side of the equation.
0.5789473684 + -2.473684211x + -0.5789473684 + x2 = 0 + -0.5789473684

Reorder the terms:
0.5789473684 + -0.5789473684 + -2.473684211x + x2 = 0 + -0.5789473684

Combine like terms: 0.5789473684 + -0.5789473684 = 0.0000000000
0.0000000000 + -2.473684211x + x2 = 0 + -0.5789473684
-2.473684211x + x2 = 0 + -0.5789473684

Combine like terms: 0 + -0.5789473684 = -0.5789473684
-2.473684211x + x2 = -0.5789473684

The x term is -2.473684211x.  Take half its coefficient (-1.236842106).
Square it (1.529778395) and add it to both sides.

Add '1.529778395' to each side of the equation.
-2.473684211x + 1.529778395 + x2 = -0.5789473684 + 1.529778395

Reorder the terms:
1.529778395 + -2.473684211x + x2 = -0.5789473684 + 1.529778395

Combine like terms: -0.5789473684 + 1.529778395 = 0.9508310266
1.529778395 + -2.473684211x + x2 = 0.9508310266

Factor a perfect square on the left side:
(x + -1.236842106)(x + -1.236842106) = 0.9508310266

Calculate the square root of the right side: 0.975105649

Break this problem into two subproblems by setting 
(x + -1.236842106) equal to 0.975105649 and -0.975105649.

Subproblem 1

x + -1.236842106 = 0.975105649 Simplifying x + -1.236842106 = 0.975105649 Reorder the terms: -1.236842106 + x = 0.975105649 Solving -1.236842106 + x = 0.975105649 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.236842106' to each side of the equation. -1.236842106 + 1.236842106 + x = 0.975105649 + 1.236842106 Combine like terms: -1.236842106 + 1.236842106 = 0.000000000 0.000000000 + x = 0.975105649 + 1.236842106 x = 0.975105649 + 1.236842106 Combine like terms: 0.975105649 + 1.236842106 = 2.211947755 x = 2.211947755 Simplifying x = 2.211947755

Subproblem 2

x + -1.236842106 = -0.975105649 Simplifying x + -1.236842106 = -0.975105649 Reorder the terms: -1.236842106 + x = -0.975105649 Solving -1.236842106 + x = -0.975105649 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.236842106' to each side of the equation. -1.236842106 + 1.236842106 + x = -0.975105649 + 1.236842106 Combine like terms: -1.236842106 + 1.236842106 = 0.000000000 0.000000000 + x = -0.975105649 + 1.236842106 x = -0.975105649 + 1.236842106 Combine like terms: -0.975105649 + 1.236842106 = 0.261736457 x = 0.261736457 Simplifying x = 0.261736457

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.211947755, 0.261736457}

See similar equations:

| 10n^2+8=198 | | -88=11w | | -84r=0 | | 7=4+3.14 | | 2(5-4y)=10-4y | | 7=4-3.14 | | 4x^2-14x+19=0 | | 4c=-36 | | 7+2=2n-1 | | -16t^2+24t+16=0 | | 45=9a | | 8=2n-1 | | (-7x+4)-(x^2+x-3)= | | (3x+4x^2+3x^3)+(2x-x^2-x^3)-(x+2x^2+4x^3)= | | [7w-6x-4][7w+2x+2]= | | W^2+7w-98=0 | | 3(8)+3(5+3)=36x(10+2) | | x^2-4+x^2-4+x^2-4=180 | | 3(8)+3(5+3)=36*(10+2) | | a-2(3a-2)=0 | | 2x+6y=0 | | X^2-15+2x=-2x+17 | | (4u^2-2u+1)(2u+1)=0 | | 3(v+-3)=-3 | | 1200=90+(250x) | | x^4-20x^2+16=0 | | X^2-15+2x=2x+17 | | -3k-27=3 | | 17+5k=12k | | -27.25=c+2.25 | | 6b=3b-5b-48 | | -6(-2p+6)=-3(2p-6) |

Equations solver categories