16t^2-45t+20=

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Solution for 16t^2-45t+20= equation:


Simplifying
16t2 + -45t + 20 = 0

Reorder the terms:
20 + -45t + 16t2 = 0

Solving
20 + -45t + 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'.
1.25 + -2.8125t + t2 = 0

Move the constant term to the right:

Add '-1.25' to each side of the equation.
1.25 + -2.8125t + -1.25 + t2 = 0 + -1.25

Reorder the terms:
1.25 + -1.25 + -2.8125t + t2 = 0 + -1.25

Combine like terms: 1.25 + -1.25 = 0.00
0.00 + -2.8125t + t2 = 0 + -1.25
-2.8125t + t2 = 0 + -1.25

Combine like terms: 0 + -1.25 = -1.25
-2.8125t + t2 = -1.25

The t term is -2.8125t.  Take half its coefficient (-1.40625).
Square it (1.977539063) and add it to both sides.

Add '1.977539063' to each side of the equation.
-2.8125t + 1.977539063 + t2 = -1.25 + 1.977539063

Reorder the terms:
1.977539063 + -2.8125t + t2 = -1.25 + 1.977539063

Combine like terms: -1.25 + 1.977539063 = 0.727539063
1.977539063 + -2.8125t + t2 = 0.727539063

Factor a perfect square on the left side:
(t + -1.40625)(t + -1.40625) = 0.727539063

Calculate the square root of the right side: 0.852959004

Break this problem into two subproblems by setting 
(t + -1.40625) equal to 0.852959004 and -0.852959004.

Subproblem 1

t + -1.40625 = 0.852959004 Simplifying t + -1.40625 = 0.852959004 Reorder the terms: -1.40625 + t = 0.852959004 Solving -1.40625 + t = 0.852959004 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.40625' to each side of the equation. -1.40625 + 1.40625 + t = 0.852959004 + 1.40625 Combine like terms: -1.40625 + 1.40625 = 0.00000 0.00000 + t = 0.852959004 + 1.40625 t = 0.852959004 + 1.40625 Combine like terms: 0.852959004 + 1.40625 = 2.259209004 t = 2.259209004 Simplifying t = 2.259209004

Subproblem 2

t + -1.40625 = -0.852959004 Simplifying t + -1.40625 = -0.852959004 Reorder the terms: -1.40625 + t = -0.852959004 Solving -1.40625 + t = -0.852959004 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.40625' to each side of the equation. -1.40625 + 1.40625 + t = -0.852959004 + 1.40625 Combine like terms: -1.40625 + 1.40625 = 0.00000 0.00000 + t = -0.852959004 + 1.40625 t = -0.852959004 + 1.40625 Combine like terms: -0.852959004 + 1.40625 = 0.553290996 t = 0.553290996 Simplifying t = 0.553290996

Solution

The solution to the problem is based on the solutions from the subproblems. t = {2.259209004, 0.553290996}

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