-16x^2+50x+7=0

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Solution for -16x^2+50x+7=0 equation:


Simplifying
-16x2 + 50x + 7 = 0

Reorder the terms:
7 + 50x + -16x2 = 0

Solving
7 + 50x + -16x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-16 the coefficient of the squared term: 

Divide each side by '-16'.
-0.4375 + -3.125x + x2 = 0

Move the constant term to the right:

Add '0.4375' to each side of the equation.
-0.4375 + -3.125x + 0.4375 + x2 = 0 + 0.4375

Reorder the terms:
-0.4375 + 0.4375 + -3.125x + x2 = 0 + 0.4375

Combine like terms: -0.4375 + 0.4375 = 0.0000
0.0000 + -3.125x + x2 = 0 + 0.4375
-3.125x + x2 = 0 + 0.4375

Combine like terms: 0 + 0.4375 = 0.4375
-3.125x + x2 = 0.4375

The x term is -3.125x.  Take half its coefficient (-1.5625).
Square it (2.44140625) and add it to both sides.

Add '2.44140625' to each side of the equation.
-3.125x + 2.44140625 + x2 = 0.4375 + 2.44140625

Reorder the terms:
2.44140625 + -3.125x + x2 = 0.4375 + 2.44140625

Combine like terms: 0.4375 + 2.44140625 = 2.87890625
2.44140625 + -3.125x + x2 = 2.87890625

Factor a perfect square on the left side:
(x + -1.5625)(x + -1.5625) = 2.87890625

Calculate the square root of the right side: 1.696733995

Break this problem into two subproblems by setting 
(x + -1.5625) equal to 1.696733995 and -1.696733995.

Subproblem 1

x + -1.5625 = 1.696733995 Simplifying x + -1.5625 = 1.696733995 Reorder the terms: -1.5625 + x = 1.696733995 Solving -1.5625 + x = 1.696733995 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5625' to each side of the equation. -1.5625 + 1.5625 + x = 1.696733995 + 1.5625 Combine like terms: -1.5625 + 1.5625 = 0.0000 0.0000 + x = 1.696733995 + 1.5625 x = 1.696733995 + 1.5625 Combine like terms: 1.696733995 + 1.5625 = 3.259233995 x = 3.259233995 Simplifying x = 3.259233995

Subproblem 2

x + -1.5625 = -1.696733995 Simplifying x + -1.5625 = -1.696733995 Reorder the terms: -1.5625 + x = -1.696733995 Solving -1.5625 + x = -1.696733995 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5625' to each side of the equation. -1.5625 + 1.5625 + x = -1.696733995 + 1.5625 Combine like terms: -1.5625 + 1.5625 = 0.0000 0.0000 + x = -1.696733995 + 1.5625 x = -1.696733995 + 1.5625 Combine like terms: -1.696733995 + 1.5625 = -0.134233995 x = -0.134233995 Simplifying x = -0.134233995

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.259233995, -0.134233995}

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