(9x^2)-61x+2=0

Simple and best practice solution for (9x^2)-61x+2=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 (9x^2)-61x+2=0 equation:


Simplifying
(9x2) + -61x + 2 = 0

Reorder the terms:
2 + -61x + (9x2) = 0

Solving
2 + -61x + (9x2) = 0

Solving for variable 'x'.

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

Divide each side by '9'.
0.2222222222 + -6.777777778x + x2 = 0

Move the constant term to the right:

Add '-0.2222222222' to each side of the equation.
0.2222222222 + -6.777777778x + -0.2222222222 + x2 = 0 + -0.2222222222

Reorder the terms:
0.2222222222 + -0.2222222222 + -6.777777778x + x2 = 0 + -0.2222222222

Combine like terms: 0.2222222222 + -0.2222222222 = 0.0000000000
0.0000000000 + -6.777777778x + x2 = 0 + -0.2222222222
-6.777777778x + x2 = 0 + -0.2222222222

Combine like terms: 0 + -0.2222222222 = -0.2222222222
-6.777777778x + x2 = -0.2222222222

The x term is -6.777777778x.  Take half its coefficient (-3.388888889).
Square it (11.48456790) and add it to both sides.

Add '11.48456790' to each side of the equation.
-6.777777778x + 11.48456790 + x2 = -0.2222222222 + 11.48456790

Reorder the terms:
11.48456790 + -6.777777778x + x2 = -0.2222222222 + 11.48456790

Combine like terms: -0.2222222222 + 11.48456790 = 11.2623456778
11.48456790 + -6.777777778x + x2 = 11.2623456778

Factor a perfect square on the left side:
((x) + -3.388888889)((x) + -3.388888889) = 11.2623456778

Calculate the square root of the right side: 3.355941847

Break this problem into two subproblems by setting 
((x) + -3.388888889) equal to 3.355941847 and -3.355941847.

Subproblem 1

(x) + -3.388888889 = 3.355941847 Simplifying (x) + -3.388888889 = 3.355941847 x + -3.388888889 = 3.355941847 Reorder the terms: -3.388888889 + x = 3.355941847 Solving -3.388888889 + x = 3.355941847 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.388888889' to each side of the equation. -3.388888889 + 3.388888889 + x = 3.355941847 + 3.388888889 Combine like terms: -3.388888889 + 3.388888889 = 0.000000000 0.000000000 + x = 3.355941847 + 3.388888889 x = 3.355941847 + 3.388888889 Combine like terms: 3.355941847 + 3.388888889 = 6.744830736 x = 6.744830736 Simplifying x = 6.744830736

Subproblem 2

(x) + -3.388888889 = -3.355941847 Simplifying (x) + -3.388888889 = -3.355941847 x + -3.388888889 = -3.355941847 Reorder the terms: -3.388888889 + x = -3.355941847 Solving -3.388888889 + x = -3.355941847 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.388888889' to each side of the equation. -3.388888889 + 3.388888889 + x = -3.355941847 + 3.388888889 Combine like terms: -3.388888889 + 3.388888889 = 0.000000000 0.000000000 + x = -3.355941847 + 3.388888889 x = -3.355941847 + 3.388888889 Combine like terms: -3.355941847 + 3.388888889 = 0.032947042 x = 0.032947042 Simplifying x = 0.032947042

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.744830736, 0.032947042}

See similar equations:

| -3y=-6+-1y | | x=3y-4/2y-1 | | -3(5+3n)-6n=90 | | 5(17m-m^2)=0 | | T/(-42)=3 | | =-2.3+6.2(3.5*-9.6) | | 8x=-2(3-2) | | a/4-2a/5=-9/2 | | 13x=11x+7 | | 13=x/16 | | 6a-4a=8 | | a-5=-17 | | (4x^2)-42x+63=0 | | -10+j=0 | | 20-7n=-50 | | 2x^2+3x-5=13 | | 0=2v-4 | | 7x^2-42x+63=0 | | 7-y=2y | | 3w*w=192 | | 7x-3/5=5 | | -12x-20=13x+90 | | 7=(1/w)-4 | | 0.3(2x-1)-2.4=0.04(x/5) | | 3y+x-5=0 | | t^13/t^5*t^8/t^6 | | -4x-5=-36 | | -100+x-7x=44 | | 1/3x-6-1 | | 7w=w-4w | | 86+12x=2x+114 | | 4+(4x-4)=17x |

Equations solver categories