4.9x^2-19x+10=0

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Solution for 4.9x^2-19x+10=0 equation:


Simplifying
4.9x2 + -19x + 10 = 0

Reorder the terms:
10 + -19x + 4.9x2 = 0

Solving
10 + -19x + 4.9x2 = 0

Solving for variable 'x'.

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

Divide each side by '4.9'.
2.040816327 + -3.87755102x + x2 = 0

Move the constant term to the right:

Add '-2.040816327' to each side of the equation.
2.040816327 + -3.87755102x + -2.040816327 + x2 = 0 + -2.040816327

Reorder the terms:
2.040816327 + -2.040816327 + -3.87755102x + x2 = 0 + -2.040816327

Combine like terms: 2.040816327 + -2.040816327 = 0.000000000
0.000000000 + -3.87755102x + x2 = 0 + -2.040816327
-3.87755102x + x2 = 0 + -2.040816327

Combine like terms: 0 + -2.040816327 = -2.040816327
-3.87755102x + x2 = -2.040816327

The x term is -3.87755102x.  Take half its coefficient (-1.93877551).
Square it (3.758850478) and add it to both sides.

Add '3.758850478' to each side of the equation.
-3.87755102x + 3.758850478 + x2 = -2.040816327 + 3.758850478

Reorder the terms:
3.758850478 + -3.87755102x + x2 = -2.040816327 + 3.758850478

Combine like terms: -2.040816327 + 3.758850478 = 1.718034151
3.758850478 + -3.87755102x + x2 = 1.718034151

Factor a perfect square on the left side:
(x + -1.93877551)(x + -1.93877551) = 1.718034151

Calculate the square root of the right side: 1.310738018

Break this problem into two subproblems by setting 
(x + -1.93877551) equal to 1.310738018 and -1.310738018.

Subproblem 1

x + -1.93877551 = 1.310738018 Simplifying x + -1.93877551 = 1.310738018 Reorder the terms: -1.93877551 + x = 1.310738018 Solving -1.93877551 + x = 1.310738018 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.93877551' to each side of the equation. -1.93877551 + 1.93877551 + x = 1.310738018 + 1.93877551 Combine like terms: -1.93877551 + 1.93877551 = 0.00000000 0.00000000 + x = 1.310738018 + 1.93877551 x = 1.310738018 + 1.93877551 Combine like terms: 1.310738018 + 1.93877551 = 3.249513528 x = 3.249513528 Simplifying x = 3.249513528

Subproblem 2

x + -1.93877551 = -1.310738018 Simplifying x + -1.93877551 = -1.310738018 Reorder the terms: -1.93877551 + x = -1.310738018 Solving -1.93877551 + x = -1.310738018 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.93877551' to each side of the equation. -1.93877551 + 1.93877551 + x = -1.310738018 + 1.93877551 Combine like terms: -1.93877551 + 1.93877551 = 0.00000000 0.00000000 + x = -1.310738018 + 1.93877551 x = -1.310738018 + 1.93877551 Combine like terms: -1.310738018 + 1.93877551 = 0.628037492 x = 0.628037492 Simplifying x = 0.628037492

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.249513528, 0.628037492}

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