50=-16x^2+63x

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Solution for 50=-16x^2+63x equation:


Simplifying
50 = -16x2 + 63x

Reorder the terms:
50 = 63x + -16x2

Solving
50 = 63x + -16x2

Solving for variable 'x'.

Reorder the terms:
50 + -63x + 16x2 = 63x + -63x + -16x2 + 16x2

Combine like terms: 63x + -63x = 0
50 + -63x + 16x2 = 0 + -16x2 + 16x2
50 + -63x + 16x2 = -16x2 + 16x2

Combine like terms: -16x2 + 16x2 = 0
50 + -63x + 16x2 = 0

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

Divide each side by '16'.
3.125 + -3.9375x + x2 = 0

Move the constant term to the right:

Add '-3.125' to each side of the equation.
3.125 + -3.9375x + -3.125 + x2 = 0 + -3.125

Reorder the terms:
3.125 + -3.125 + -3.9375x + x2 = 0 + -3.125

Combine like terms: 3.125 + -3.125 = 0.000
0.000 + -3.9375x + x2 = 0 + -3.125
-3.9375x + x2 = 0 + -3.125

Combine like terms: 0 + -3.125 = -3.125
-3.9375x + x2 = -3.125

The x term is -3.9375x.  Take half its coefficient (-1.96875).
Square it (3.875976563) and add it to both sides.

Add '3.875976563' to each side of the equation.
-3.9375x + 3.875976563 + x2 = -3.125 + 3.875976563

Reorder the terms:
3.875976563 + -3.9375x + x2 = -3.125 + 3.875976563

Combine like terms: -3.125 + 3.875976563 = 0.750976563
3.875976563 + -3.9375x + x2 = 0.750976563

Factor a perfect square on the left side:
(x + -1.96875)(x + -1.96875) = 0.750976563

Calculate the square root of the right side: 0.866589039

Break this problem into two subproblems by setting 
(x + -1.96875) equal to 0.866589039 and -0.866589039.

Subproblem 1

x + -1.96875 = 0.866589039 Simplifying x + -1.96875 = 0.866589039 Reorder the terms: -1.96875 + x = 0.866589039 Solving -1.96875 + x = 0.866589039 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.96875' to each side of the equation. -1.96875 + 1.96875 + x = 0.866589039 + 1.96875 Combine like terms: -1.96875 + 1.96875 = 0.00000 0.00000 + x = 0.866589039 + 1.96875 x = 0.866589039 + 1.96875 Combine like terms: 0.866589039 + 1.96875 = 2.835339039 x = 2.835339039 Simplifying x = 2.835339039

Subproblem 2

x + -1.96875 = -0.866589039 Simplifying x + -1.96875 = -0.866589039 Reorder the terms: -1.96875 + x = -0.866589039 Solving -1.96875 + x = -0.866589039 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.96875' to each side of the equation. -1.96875 + 1.96875 + x = -0.866589039 + 1.96875 Combine like terms: -1.96875 + 1.96875 = 0.00000 0.00000 + x = -0.866589039 + 1.96875 x = -0.866589039 + 1.96875 Combine like terms: -0.866589039 + 1.96875 = 1.102160961 x = 1.102160961 Simplifying x = 1.102160961

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.835339039, 1.102160961}

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