-50=(5-10)*t+(0-4.9)*t^2

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Solution for -50=(5-10)*t+(0-4.9)*t^2 equation:


Simplifying
-50 = (5 + -10) * t + (0 + -4.9) * t2

Combine like terms: 5 + -10 = -5
-50 = (-5) * t + (0 + -4.9) * t2

Combine like terms: 0 + -4.9 = -4.9
-50 = -5t + (-4.9) * t2

Solving
-50 = -5t + -4.9t2

Solving for variable 't'.

Reorder the terms:
-50 + 5t + 4.9t2 = -5t + 5t + -4.9t2 + 4.9t2

Combine like terms: -5t + 5t = 0
-50 + 5t + 4.9t2 = 0 + -4.9t2 + 4.9t2
-50 + 5t + 4.9t2 = -4.9t2 + 4.9t2

Combine like terms: -4.9t2 + 4.9t2 = 0.0
-50 + 5t + 4.9t2 = 0.0

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

Divide each side by '4.9'.
-10.20408163 + 1.020408163t + t2 = 0

Move the constant term to the right:

Add '10.20408163' to each side of the equation.
-10.20408163 + 1.020408163t + 10.20408163 + t2 = 0 + 10.20408163

Reorder the terms:
-10.20408163 + 10.20408163 + 1.020408163t + t2 = 0 + 10.20408163

Combine like terms: -10.20408163 + 10.20408163 = 0.00000000
0.00000000 + 1.020408163t + t2 = 0 + 10.20408163
1.020408163t + t2 = 0 + 10.20408163

Combine like terms: 0 + 10.20408163 = 10.20408163
1.020408163t + t2 = 10.20408163

The t term is 1.020408163t.  Take half its coefficient (0.5102040815).
Square it (0.2603082048) and add it to both sides.

Add '0.2603082048' to each side of the equation.
1.020408163t + 0.2603082048 + t2 = 10.20408163 + 0.2603082048

Reorder the terms:
0.2603082048 + 1.020408163t + t2 = 10.20408163 + 0.2603082048

Combine like terms: 10.20408163 + 0.2603082048 = 10.4643898348
0.2603082048 + 1.020408163t + t2 = 10.4643898348

Factor a perfect square on the left side:
(t + 0.5102040815)(t + 0.5102040815) = 10.4643898348

Calculate the square root of the right side: 3.234870915

Break this problem into two subproblems by setting 
(t + 0.5102040815) equal to 3.234870915 and -3.234870915.

Subproblem 1

t + 0.5102040815 = 3.234870915 Simplifying t + 0.5102040815 = 3.234870915 Reorder the terms: 0.5102040815 + t = 3.234870915 Solving 0.5102040815 + t = 3.234870915 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.5102040815' to each side of the equation. 0.5102040815 + -0.5102040815 + t = 3.234870915 + -0.5102040815 Combine like terms: 0.5102040815 + -0.5102040815 = 0.0000000000 0.0000000000 + t = 3.234870915 + -0.5102040815 t = 3.234870915 + -0.5102040815 Combine like terms: 3.234870915 + -0.5102040815 = 2.7246668335 t = 2.7246668335 Simplifying t = 2.7246668335

Subproblem 2

t + 0.5102040815 = -3.234870915 Simplifying t + 0.5102040815 = -3.234870915 Reorder the terms: 0.5102040815 + t = -3.234870915 Solving 0.5102040815 + t = -3.234870915 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.5102040815' to each side of the equation. 0.5102040815 + -0.5102040815 + t = -3.234870915 + -0.5102040815 Combine like terms: 0.5102040815 + -0.5102040815 = 0.0000000000 0.0000000000 + t = -3.234870915 + -0.5102040815 t = -3.234870915 + -0.5102040815 Combine like terms: -3.234870915 + -0.5102040815 = -3.7450749965 t = -3.7450749965 Simplifying t = -3.7450749965

Solution

The solution to the problem is based on the solutions from the subproblems. t = {2.7246668335, -3.7450749965}

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