16=48d-d^2

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Solution for 16=48d-d^2 equation:


Simplifying
16 = 48d + -1d2

Solving
16 = 48d + -1d2

Solving for variable 'd'.

Reorder the terms:
16 + -48d + d2 = 48d + -48d + -1d2 + d2

Combine like terms: 48d + -48d = 0
16 + -48d + d2 = 0 + -1d2 + d2
16 + -48d + d2 = -1d2 + d2

Combine like terms: -1d2 + d2 = 0
16 + -48d + d2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-16' to each side of the equation.
16 + -48d + -16 + d2 = 0 + -16

Reorder the terms:
16 + -16 + -48d + d2 = 0 + -16

Combine like terms: 16 + -16 = 0
0 + -48d + d2 = 0 + -16
-48d + d2 = 0 + -16

Combine like terms: 0 + -16 = -16
-48d + d2 = -16

The d term is -48d.  Take half its coefficient (-24).
Square it (576) and add it to both sides.

Add '576' to each side of the equation.
-48d + 576 + d2 = -16 + 576

Reorder the terms:
576 + -48d + d2 = -16 + 576

Combine like terms: -16 + 576 = 560
576 + -48d + d2 = 560

Factor a perfect square on the left side:
(d + -24)(d + -24) = 560

Calculate the square root of the right side: 23.664319132

Break this problem into two subproblems by setting 
(d + -24) equal to 23.664319132 and -23.664319132.

Subproblem 1

d + -24 = 23.664319132 Simplifying d + -24 = 23.664319132 Reorder the terms: -24 + d = 23.664319132 Solving -24 + d = 23.664319132 Solving for variable 'd'. Move all terms containing d to the left, all other terms to the right. Add '24' to each side of the equation. -24 + 24 + d = 23.664319132 + 24 Combine like terms: -24 + 24 = 0 0 + d = 23.664319132 + 24 d = 23.664319132 + 24 Combine like terms: 23.664319132 + 24 = 47.664319132 d = 47.664319132 Simplifying d = 47.664319132

Subproblem 2

d + -24 = -23.664319132 Simplifying d + -24 = -23.664319132 Reorder the terms: -24 + d = -23.664319132 Solving -24 + d = -23.664319132 Solving for variable 'd'. Move all terms containing d to the left, all other terms to the right. Add '24' to each side of the equation. -24 + 24 + d = -23.664319132 + 24 Combine like terms: -24 + 24 = 0 0 + d = -23.664319132 + 24 d = -23.664319132 + 24 Combine like terms: -23.664319132 + 24 = 0.335680868 d = 0.335680868 Simplifying d = 0.335680868

Solution

The solution to the problem is based on the solutions from the subproblems. d = {47.664319132, 0.335680868}

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