17a^2+3a-2=0

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Solution for 17a^2+3a-2=0 equation:


Simplifying
17a2 + 3a + -2 = 0

Reorder the terms:
-2 + 3a + 17a2 = 0

Solving
-2 + 3a + 17a2 = 0

Solving for variable 'a'.

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

Divide each side by '17'.
-0.1176470588 + 0.1764705882a + a2 = 0

Move the constant term to the right:

Add '0.1176470588' to each side of the equation.
-0.1176470588 + 0.1764705882a + 0.1176470588 + a2 = 0 + 0.1176470588

Reorder the terms:
-0.1176470588 + 0.1176470588 + 0.1764705882a + a2 = 0 + 0.1176470588

Combine like terms: -0.1176470588 + 0.1176470588 = 0.0000000000
0.0000000000 + 0.1764705882a + a2 = 0 + 0.1176470588
0.1764705882a + a2 = 0 + 0.1176470588

Combine like terms: 0 + 0.1176470588 = 0.1176470588
0.1764705882a + a2 = 0.1176470588

The a term is 0.1764705882a.  Take half its coefficient (0.0882352941).
Square it (0.007785467125) and add it to both sides.

Add '0.007785467125' to each side of the equation.
0.1764705882a + 0.007785467125 + a2 = 0.1176470588 + 0.007785467125

Reorder the terms:
0.007785467125 + 0.1764705882a + a2 = 0.1176470588 + 0.007785467125

Combine like terms: 0.1176470588 + 0.007785467125 = 0.125432525925
0.007785467125 + 0.1764705882a + a2 = 0.125432525925

Factor a perfect square on the left side:
(a + 0.0882352941)(a + 0.0882352941) = 0.125432525925

Calculate the square root of the right side: 0.354164546

Break this problem into two subproblems by setting 
(a + 0.0882352941) equal to 0.354164546 and -0.354164546.

Subproblem 1

a + 0.0882352941 = 0.354164546 Simplifying a + 0.0882352941 = 0.354164546 Reorder the terms: 0.0882352941 + a = 0.354164546 Solving 0.0882352941 + a = 0.354164546 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-0.0882352941' to each side of the equation. 0.0882352941 + -0.0882352941 + a = 0.354164546 + -0.0882352941 Combine like terms: 0.0882352941 + -0.0882352941 = 0.0000000000 0.0000000000 + a = 0.354164546 + -0.0882352941 a = 0.354164546 + -0.0882352941 Combine like terms: 0.354164546 + -0.0882352941 = 0.2659292519 a = 0.2659292519 Simplifying a = 0.2659292519

Subproblem 2

a + 0.0882352941 = -0.354164546 Simplifying a + 0.0882352941 = -0.354164546 Reorder the terms: 0.0882352941 + a = -0.354164546 Solving 0.0882352941 + a = -0.354164546 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-0.0882352941' to each side of the equation. 0.0882352941 + -0.0882352941 + a = -0.354164546 + -0.0882352941 Combine like terms: 0.0882352941 + -0.0882352941 = 0.0000000000 0.0000000000 + a = -0.354164546 + -0.0882352941 a = -0.354164546 + -0.0882352941 Combine like terms: -0.354164546 + -0.0882352941 = -0.4423998401 a = -0.4423998401 Simplifying a = -0.4423998401

Solution

The solution to the problem is based on the solutions from the subproblems. a = {0.2659292519, -0.4423998401}

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