-4.9t^2+121t+262=0

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Solution for -4.9t^2+121t+262=0 equation:


Simplifying
-4.9t2 + 121t + 262 = 0

Reorder the terms:
262 + 121t + -4.9t2 = 0

Solving
262 + 121t + -4.9t2 = 0

Solving for variable 't'.

Begin completing the square.  Divide all terms by
-4.9 the coefficient of the squared term: 

Divide each side by '-4.9'.
-53.46938776 + -24.69387755t + t2 = 0

Move the constant term to the right:

Add '53.46938776' to each side of the equation.
-53.46938776 + -24.69387755t + 53.46938776 + t2 = 0 + 53.46938776

Reorder the terms:
-53.46938776 + 53.46938776 + -24.69387755t + t2 = 0 + 53.46938776

Combine like terms: -53.46938776 + 53.46938776 = 0.00000000
0.00000000 + -24.69387755t + t2 = 0 + 53.46938776
-24.69387755t + t2 = 0 + 53.46938776

Combine like terms: 0 + 53.46938776 = 53.46938776
-24.69387755t + t2 = 53.46938776

The t term is -24.69387755t.  Take half its coefficient (-12.34693878).
Square it (152.4468972) and add it to both sides.

Add '152.4468972' to each side of the equation.
-24.69387755t + 152.4468972 + t2 = 53.46938776 + 152.4468972

Reorder the terms:
152.4468972 + -24.69387755t + t2 = 53.46938776 + 152.4468972

Combine like terms: 53.46938776 + 152.4468972 = 205.91628496
152.4468972 + -24.69387755t + t2 = 205.91628496

Factor a perfect square on the left side:
(t + -12.34693878)(t + -12.34693878) = 205.91628496

Calculate the square root of the right side: 14.349783446

Break this problem into two subproblems by setting 
(t + -12.34693878) equal to 14.349783446 and -14.349783446.

Subproblem 1

t + -12.34693878 = 14.349783446 Simplifying t + -12.34693878 = 14.349783446 Reorder the terms: -12.34693878 + t = 14.349783446 Solving -12.34693878 + t = 14.349783446 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '12.34693878' to each side of the equation. -12.34693878 + 12.34693878 + t = 14.349783446 + 12.34693878 Combine like terms: -12.34693878 + 12.34693878 = 0.00000000 0.00000000 + t = 14.349783446 + 12.34693878 t = 14.349783446 + 12.34693878 Combine like terms: 14.349783446 + 12.34693878 = 26.696722226 t = 26.696722226 Simplifying t = 26.696722226

Subproblem 2

t + -12.34693878 = -14.349783446 Simplifying t + -12.34693878 = -14.349783446 Reorder the terms: -12.34693878 + t = -14.349783446 Solving -12.34693878 + t = -14.349783446 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '12.34693878' to each side of the equation. -12.34693878 + 12.34693878 + t = -14.349783446 + 12.34693878 Combine like terms: -12.34693878 + 12.34693878 = 0.00000000 0.00000000 + t = -14.349783446 + 12.34693878 t = -14.349783446 + 12.34693878 Combine like terms: -14.349783446 + 12.34693878 = -2.002844666 t = -2.002844666 Simplifying t = -2.002844666

Solution

The solution to the problem is based on the solutions from the subproblems. t = {26.696722226, -2.002844666}

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