22x^2+61x-30=0

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Solution for 22x^2+61x-30=0 equation:


Simplifying
22x2 + 61x + -30 = 0

Reorder the terms:
-30 + 61x + 22x2 = 0

Solving
-30 + 61x + 22x2 = 0

Solving for variable 'x'.

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

Divide each side by '22'.
-1.363636364 + 2.772727273x + x2 = 0

Move the constant term to the right:

Add '1.363636364' to each side of the equation.
-1.363636364 + 2.772727273x + 1.363636364 + x2 = 0 + 1.363636364

Reorder the terms:
-1.363636364 + 1.363636364 + 2.772727273x + x2 = 0 + 1.363636364

Combine like terms: -1.363636364 + 1.363636364 = 0.000000000
0.000000000 + 2.772727273x + x2 = 0 + 1.363636364
2.772727273x + x2 = 0 + 1.363636364

Combine like terms: 0 + 1.363636364 = 1.363636364
2.772727273x + x2 = 1.363636364

The x term is 2.772727273x.  Take half its coefficient (1.386363637).
Square it (1.922004134) and add it to both sides.

Add '1.922004134' to each side of the equation.
2.772727273x + 1.922004134 + x2 = 1.363636364 + 1.922004134

Reorder the terms:
1.922004134 + 2.772727273x + x2 = 1.363636364 + 1.922004134

Combine like terms: 1.363636364 + 1.922004134 = 3.285640498
1.922004134 + 2.772727273x + x2 = 3.285640498

Factor a perfect square on the left side:
(x + 1.386363637)(x + 1.386363637) = 3.285640498

Calculate the square root of the right side: 1.812633581

Break this problem into two subproblems by setting 
(x + 1.386363637) equal to 1.812633581 and -1.812633581.

Subproblem 1

x + 1.386363637 = 1.812633581 Simplifying x + 1.386363637 = 1.812633581 Reorder the terms: 1.386363637 + x = 1.812633581 Solving 1.386363637 + x = 1.812633581 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.386363637' to each side of the equation. 1.386363637 + -1.386363637 + x = 1.812633581 + -1.386363637 Combine like terms: 1.386363637 + -1.386363637 = 0.000000000 0.000000000 + x = 1.812633581 + -1.386363637 x = 1.812633581 + -1.386363637 Combine like terms: 1.812633581 + -1.386363637 = 0.426269944 x = 0.426269944 Simplifying x = 0.426269944

Subproblem 2

x + 1.386363637 = -1.812633581 Simplifying x + 1.386363637 = -1.812633581 Reorder the terms: 1.386363637 + x = -1.812633581 Solving 1.386363637 + x = -1.812633581 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.386363637' to each side of the equation. 1.386363637 + -1.386363637 + x = -1.812633581 + -1.386363637 Combine like terms: 1.386363637 + -1.386363637 = 0.000000000 0.000000000 + x = -1.812633581 + -1.386363637 x = -1.812633581 + -1.386363637 Combine like terms: -1.812633581 + -1.386363637 = -3.198997218 x = -3.198997218 Simplifying x = -3.198997218

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.426269944, -3.198997218}

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