7x^2-101x+322=0

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Solution for 7x^2-101x+322=0 equation:


Simplifying
7x2 + -101x + 322 = 0

Reorder the terms:
322 + -101x + 7x2 = 0

Solving
322 + -101x + 7x2 = 0

Solving for variable 'x'.

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

Divide each side by '7'.
46 + -14.42857143x + x2 = 0

Move the constant term to the right:

Add '-46' to each side of the equation.
46 + -14.42857143x + -46 + x2 = 0 + -46

Reorder the terms:
46 + -46 + -14.42857143x + x2 = 0 + -46

Combine like terms: 46 + -46 = 0
0 + -14.42857143x + x2 = 0 + -46
-14.42857143x + x2 = 0 + -46

Combine like terms: 0 + -46 = -46
-14.42857143x + x2 = -46

The x term is -14.42857143x.  Take half its coefficient (-7.214285715).
Square it (52.04591838) and add it to both sides.

Add '52.04591838' to each side of the equation.
-14.42857143x + 52.04591838 + x2 = -46 + 52.04591838

Reorder the terms:
52.04591838 + -14.42857143x + x2 = -46 + 52.04591838

Combine like terms: -46 + 52.04591838 = 6.04591838
52.04591838 + -14.42857143x + x2 = 6.04591838

Factor a perfect square on the left side:
(x + -7.214285715)(x + -7.214285715) = 6.04591838

Calculate the square root of the right side: 2.458844928

Break this problem into two subproblems by setting 
(x + -7.214285715) equal to 2.458844928 and -2.458844928.

Subproblem 1

x + -7.214285715 = 2.458844928 Simplifying x + -7.214285715 = 2.458844928 Reorder the terms: -7.214285715 + x = 2.458844928 Solving -7.214285715 + x = 2.458844928 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7.214285715' to each side of the equation. -7.214285715 + 7.214285715 + x = 2.458844928 + 7.214285715 Combine like terms: -7.214285715 + 7.214285715 = 0.000000000 0.000000000 + x = 2.458844928 + 7.214285715 x = 2.458844928 + 7.214285715 Combine like terms: 2.458844928 + 7.214285715 = 9.673130643 x = 9.673130643 Simplifying x = 9.673130643

Subproblem 2

x + -7.214285715 = -2.458844928 Simplifying x + -7.214285715 = -2.458844928 Reorder the terms: -7.214285715 + x = -2.458844928 Solving -7.214285715 + x = -2.458844928 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7.214285715' to each side of the equation. -7.214285715 + 7.214285715 + x = -2.458844928 + 7.214285715 Combine like terms: -7.214285715 + 7.214285715 = 0.000000000 0.000000000 + x = -2.458844928 + 7.214285715 x = -2.458844928 + 7.214285715 Combine like terms: -2.458844928 + 7.214285715 = 4.755440787 x = 4.755440787 Simplifying x = 4.755440787

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.673130643, 4.755440787}

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