12+3x-35x^2=0

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Solution for 12+3x-35x^2=0 equation:


Simplifying
12 + 3x + -35x2 = 0

Solving
12 + 3x + -35x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-35 the coefficient of the squared term: 

Divide each side by '-35'.
-0.3428571429 + -0.08571428571x + x2 = 0

Move the constant term to the right:

Add '0.3428571429' to each side of the equation.
-0.3428571429 + -0.08571428571x + 0.3428571429 + x2 = 0 + 0.3428571429

Reorder the terms:
-0.3428571429 + 0.3428571429 + -0.08571428571x + x2 = 0 + 0.3428571429

Combine like terms: -0.3428571429 + 0.3428571429 = 0.0000000000
0.0000000000 + -0.08571428571x + x2 = 0 + 0.3428571429
-0.08571428571x + x2 = 0 + 0.3428571429

Combine like terms: 0 + 0.3428571429 = 0.3428571429
-0.08571428571x + x2 = 0.3428571429

The x term is -0.08571428571x.  Take half its coefficient (-0.04285714286).
Square it (0.001836734694) and add it to both sides.

Add '0.001836734694' to each side of the equation.
-0.08571428571x + 0.001836734694 + x2 = 0.3428571429 + 0.001836734694

Reorder the terms:
0.001836734694 + -0.08571428571x + x2 = 0.3428571429 + 0.001836734694

Combine like terms: 0.3428571429 + 0.001836734694 = 0.344693877594
0.001836734694 + -0.08571428571x + x2 = 0.344693877594

Factor a perfect square on the left side:
(x + -0.04285714286)(x + -0.04285714286) = 0.344693877594

Calculate the square root of the right side: 0.58710636

Break this problem into two subproblems by setting 
(x + -0.04285714286) equal to 0.58710636 and -0.58710636.

Subproblem 1

x + -0.04285714286 = 0.58710636 Simplifying x + -0.04285714286 = 0.58710636 Reorder the terms: -0.04285714286 + x = 0.58710636 Solving -0.04285714286 + x = 0.58710636 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.04285714286' to each side of the equation. -0.04285714286 + 0.04285714286 + x = 0.58710636 + 0.04285714286 Combine like terms: -0.04285714286 + 0.04285714286 = 0.00000000000 0.00000000000 + x = 0.58710636 + 0.04285714286 x = 0.58710636 + 0.04285714286 Combine like terms: 0.58710636 + 0.04285714286 = 0.62996350286 x = 0.62996350286 Simplifying x = 0.62996350286

Subproblem 2

x + -0.04285714286 = -0.58710636 Simplifying x + -0.04285714286 = -0.58710636 Reorder the terms: -0.04285714286 + x = -0.58710636 Solving -0.04285714286 + x = -0.58710636 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.04285714286' to each side of the equation. -0.04285714286 + 0.04285714286 + x = -0.58710636 + 0.04285714286 Combine like terms: -0.04285714286 + 0.04285714286 = 0.00000000000 0.00000000000 + x = -0.58710636 + 0.04285714286 x = -0.58710636 + 0.04285714286 Combine like terms: -0.58710636 + 0.04285714286 = -0.54424921714 x = -0.54424921714 Simplifying x = -0.54424921714

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.62996350286, -0.54424921714}

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