0.02x^2-3.4x+16=0

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Solution for 0.02x^2-3.4x+16=0 equation:


Simplifying
0.02x2 + -3.4x + 16 = 0

Reorder the terms:
16 + -3.4x + 0.02x2 = 0

Solving
16 + -3.4x + 0.02x2 = 0

Solving for variable 'x'.

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

Divide each side by '0.02'.
800 + -170x + x2 = 0

Move the constant term to the right:

Add '-800' to each side of the equation.
800 + -170x + -800 + x2 = 0 + -800

Reorder the terms:
800 + -800 + -170x + x2 = 0 + -800

Combine like terms: 800 + -800 = 0
0 + -170x + x2 = 0 + -800
-170x + x2 = 0 + -800

Combine like terms: 0 + -800 = -800
-170x + x2 = -800

The x term is -170x.  Take half its coefficient (-85).
Square it (7225) and add it to both sides.

Add '7225' to each side of the equation.
-170x + 7225 + x2 = -800 + 7225

Reorder the terms:
7225 + -170x + x2 = -800 + 7225

Combine like terms: -800 + 7225 = 6425
7225 + -170x + x2 = 6425

Factor a perfect square on the left side:
(x + -85)(x + -85) = 6425

Calculate the square root of the right side: 80.156097709

Break this problem into two subproblems by setting 
(x + -85) equal to 80.156097709 and -80.156097709.

Subproblem 1

x + -85 = 80.156097709 Simplifying x + -85 = 80.156097709 Reorder the terms: -85 + x = 80.156097709 Solving -85 + x = 80.156097709 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '85' to each side of the equation. -85 + 85 + x = 80.156097709 + 85 Combine like terms: -85 + 85 = 0 0 + x = 80.156097709 + 85 x = 80.156097709 + 85 Combine like terms: 80.156097709 + 85 = 165.156097709 x = 165.156097709 Simplifying x = 165.156097709

Subproblem 2

x + -85 = -80.156097709 Simplifying x + -85 = -80.156097709 Reorder the terms: -85 + x = -80.156097709 Solving -85 + x = -80.156097709 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '85' to each side of the equation. -85 + 85 + x = -80.156097709 + 85 Combine like terms: -85 + 85 = 0 0 + x = -80.156097709 + 85 x = -80.156097709 + 85 Combine like terms: -80.156097709 + 85 = 4.843902291 x = 4.843902291 Simplifying x = 4.843902291

Solution

The solution to the problem is based on the solutions from the subproblems. x = {165.156097709, 4.843902291}

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