-4.9x^2+34.3x+1.5=6

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Solution for -4.9x^2+34.3x+1.5=6 equation:


Simplifying
-4.9x2 + 34.3x + 1.5 = 6

Reorder the terms:
1.5 + 34.3x + -4.9x2 = 6

Solving
1.5 + 34.3x + -4.9x2 = 6

Solving for variable 'x'.

Reorder the terms:
1.5 + -6 + 34.3x + -4.9x2 = 6 + -6

Combine like terms: 1.5 + -6 = -4.5
-4.5 + 34.3x + -4.9x2 = 6 + -6

Combine like terms: 6 + -6 = 0
-4.5 + 34.3x + -4.9x2 = 0

Begin completing the square.  Divide all terms by
-4.9 the coefficient of the squared term: 

Divide each side by '-4.9'.
0.9183673469 + -7x + x2 = 0

Move the constant term to the right:

Add '-0.9183673469' to each side of the equation.
0.9183673469 + -7x + -0.9183673469 + x2 = 0 + -0.9183673469

Reorder the terms:
0.9183673469 + -0.9183673469 + -7x + x2 = 0 + -0.9183673469

Combine like terms: 0.9183673469 + -0.9183673469 = 0.0000000000
0.0000000000 + -7x + x2 = 0 + -0.9183673469
-7x + x2 = 0 + -0.9183673469

Combine like terms: 0 + -0.9183673469 = -0.9183673469
-7x + x2 = -0.9183673469

The x term is -7x.  Take half its coefficient (-3.5).
Square it (12.25) and add it to both sides.

Add '12.25' to each side of the equation.
-7x + 12.25 + x2 = -0.9183673469 + 12.25

Reorder the terms:
12.25 + -7x + x2 = -0.9183673469 + 12.25

Combine like terms: -0.9183673469 + 12.25 = 11.3316326531
12.25 + -7x + x2 = 11.3316326531

Factor a perfect square on the left side:
(x + -3.5)(x + -3.5) = 11.3316326531

Calculate the square root of the right side: 3.366249048

Break this problem into two subproblems by setting 
(x + -3.5) equal to 3.366249048 and -3.366249048.

Subproblem 1

x + -3.5 = 3.366249048 Simplifying x + -3.5 = 3.366249048 Reorder the terms: -3.5 + x = 3.366249048 Solving -3.5 + x = 3.366249048 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + x = 3.366249048 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + x = 3.366249048 + 3.5 x = 3.366249048 + 3.5 Combine like terms: 3.366249048 + 3.5 = 6.866249048 x = 6.866249048 Simplifying x = 6.866249048

Subproblem 2

x + -3.5 = -3.366249048 Simplifying x + -3.5 = -3.366249048 Reorder the terms: -3.5 + x = -3.366249048 Solving -3.5 + x = -3.366249048 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + x = -3.366249048 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + x = -3.366249048 + 3.5 x = -3.366249048 + 3.5 Combine like terms: -3.366249048 + 3.5 = 0.133750952 x = 0.133750952 Simplifying x = 0.133750952

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.866249048, 0.133750952}

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