-16t^2+63t+16=0

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Solution for -16t^2+63t+16=0 equation:


Simplifying
-16t2 + 63t + 16 = 0

Reorder the terms:
16 + 63t + -16t2 = 0

Solving
16 + 63t + -16t2 = 0

Solving for variable 't'.

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

Divide each side by '-16'.
-1 + -3.9375t + t2 = 0

Move the constant term to the right:

Add '1' to each side of the equation.
-1 + -3.9375t + 1 + t2 = 0 + 1

Reorder the terms:
-1 + 1 + -3.9375t + t2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -3.9375t + t2 = 0 + 1
-3.9375t + t2 = 0 + 1

Combine like terms: 0 + 1 = 1
-3.9375t + t2 = 1

The t term is -3.9375t.  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.
-3.9375t + 3.875976563 + t2 = 1 + 3.875976563

Reorder the terms:
3.875976563 + -3.9375t + t2 = 1 + 3.875976563

Combine like terms: 1 + 3.875976563 = 4.875976563
3.875976563 + -3.9375t + t2 = 4.875976563

Factor a perfect square on the left side:
(t + -1.96875)(t + -1.96875) = 4.875976563

Calculate the square root of the right side: 2.208161353

Break this problem into two subproblems by setting 
(t + -1.96875) equal to 2.208161353 and -2.208161353.

Subproblem 1

t + -1.96875 = 2.208161353 Simplifying t + -1.96875 = 2.208161353 Reorder the terms: -1.96875 + t = 2.208161353 Solving -1.96875 + t = 2.208161353 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.96875' to each side of the equation. -1.96875 + 1.96875 + t = 2.208161353 + 1.96875 Combine like terms: -1.96875 + 1.96875 = 0.00000 0.00000 + t = 2.208161353 + 1.96875 t = 2.208161353 + 1.96875 Combine like terms: 2.208161353 + 1.96875 = 4.176911353 t = 4.176911353 Simplifying t = 4.176911353

Subproblem 2

t + -1.96875 = -2.208161353 Simplifying t + -1.96875 = -2.208161353 Reorder the terms: -1.96875 + t = -2.208161353 Solving -1.96875 + t = -2.208161353 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.96875' to each side of the equation. -1.96875 + 1.96875 + t = -2.208161353 + 1.96875 Combine like terms: -1.96875 + 1.96875 = 0.00000 0.00000 + t = -2.208161353 + 1.96875 t = -2.208161353 + 1.96875 Combine like terms: -2.208161353 + 1.96875 = -0.239411353 t = -0.239411353 Simplifying t = -0.239411353

Solution

The solution to the problem is based on the solutions from the subproblems. t = {4.176911353, -0.239411353}

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