36x^2-121x+16=0

Simple and best practice solution for 36x^2-121x+16=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 36x^2-121x+16=0 equation:


Simplifying
36x2 + -121x + 16 = 0

Reorder the terms:
16 + -121x + 36x2 = 0

Solving
16 + -121x + 36x2 = 0

Solving for variable 'x'.

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

Divide each side by '36'.
0.4444444444 + -3.361111111x + x2 = 0

Move the constant term to the right:

Add '-0.4444444444' to each side of the equation.
0.4444444444 + -3.361111111x + -0.4444444444 + x2 = 0 + -0.4444444444

Reorder the terms:
0.4444444444 + -0.4444444444 + -3.361111111x + x2 = 0 + -0.4444444444

Combine like terms: 0.4444444444 + -0.4444444444 = 0.0000000000
0.0000000000 + -3.361111111x + x2 = 0 + -0.4444444444
-3.361111111x + x2 = 0 + -0.4444444444

Combine like terms: 0 + -0.4444444444 = -0.4444444444
-3.361111111x + x2 = -0.4444444444

The x term is -3.361111111x.  Take half its coefficient (-1.680555556).
Square it (2.824266977) and add it to both sides.

Add '2.824266977' to each side of the equation.
-3.361111111x + 2.824266977 + x2 = -0.4444444444 + 2.824266977

Reorder the terms:
2.824266977 + -3.361111111x + x2 = -0.4444444444 + 2.824266977

Combine like terms: -0.4444444444 + 2.824266977 = 2.3798225326
2.824266977 + -3.361111111x + x2 = 2.3798225326

Factor a perfect square on the left side:
(x + -1.680555556)(x + -1.680555556) = 2.3798225326

Calculate the square root of the right side: 1.542667343

Break this problem into two subproblems by setting 
(x + -1.680555556) equal to 1.542667343 and -1.542667343.

Subproblem 1

x + -1.680555556 = 1.542667343 Simplifying x + -1.680555556 = 1.542667343 Reorder the terms: -1.680555556 + x = 1.542667343 Solving -1.680555556 + x = 1.542667343 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.680555556' to each side of the equation. -1.680555556 + 1.680555556 + x = 1.542667343 + 1.680555556 Combine like terms: -1.680555556 + 1.680555556 = 0.000000000 0.000000000 + x = 1.542667343 + 1.680555556 x = 1.542667343 + 1.680555556 Combine like terms: 1.542667343 + 1.680555556 = 3.223222899 x = 3.223222899 Simplifying x = 3.223222899

Subproblem 2

x + -1.680555556 = -1.542667343 Simplifying x + -1.680555556 = -1.542667343 Reorder the terms: -1.680555556 + x = -1.542667343 Solving -1.680555556 + x = -1.542667343 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.680555556' to each side of the equation. -1.680555556 + 1.680555556 + x = -1.542667343 + 1.680555556 Combine like terms: -1.680555556 + 1.680555556 = 0.000000000 0.000000000 + x = -1.542667343 + 1.680555556 x = -1.542667343 + 1.680555556 Combine like terms: -1.542667343 + 1.680555556 = 0.137888213 x = 0.137888213 Simplifying x = 0.137888213

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.223222899, 0.137888213}

See similar equations:

| x^2/3-7x^1/3+12=0 | | 19x-7=12x-35 | | 165-5x=6x-22 | | X^2-10x+17=-4 | | 3x-2x=1+1+100 | | -67-7x=30-21x | | (x^2-49)=0 | | (6x+1)(6x-1)=0 | | 2x+4=5+3 | | (36x+1)(36x-1)=0 | | -3(5y)-7+4(7y+4)= | | 1/f=1/g+1/h | | x+x+x=12-1-2 | | (6x-1)(6x-1)=0 | | x^3+3x^2+4x-8=0 | | (16x-2x-2)/(4x-1) | | (5/2n+1)+(3/2n-1)=22/4n^2-1 | | 2x+4x+5=35 | | -8y-1=-7y-2 | | x^2+11x-49=4x-5 | | 2n-6=5n+24 | | c^16/k^16*16c^8/k^16 | | 2x/x-2+x/x+4=-(5)/(x+4) | | 1=7x+15 | | 4x*2y=0 | | x^2-2x-1=7 | | 46-4x=14x+22 | | 1/2+17/9 | | x^(2/3)=36 | | 6x-3x=5x-10x+4 | | 6x-3x=5x-10+4 | | 65x=156 |

Equations solver categories