0=-16t^2+64t+980

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Solution for 0=-16t^2+64t+980 equation:


Simplifying
0 = -16t2 + 64t + 980

Reorder the terms:
0 = 980 + 64t + -16t2

Solving
0 = 980 + 64t + -16t2

Solving for variable 't'.

Combine like terms: 0 + -980 = -980
-980 + -64t + 16t2 = 980 + 64t + -16t2 + -980 + -64t + 16t2

Reorder the terms:
-980 + -64t + 16t2 = 980 + -980 + 64t + -64t + -16t2 + 16t2

Combine like terms: 980 + -980 = 0
-980 + -64t + 16t2 = 0 + 64t + -64t + -16t2 + 16t2
-980 + -64t + 16t2 = 64t + -64t + -16t2 + 16t2

Combine like terms: 64t + -64t = 0
-980 + -64t + 16t2 = 0 + -16t2 + 16t2
-980 + -64t + 16t2 = -16t2 + 16t2

Combine like terms: -16t2 + 16t2 = 0
-980 + -64t + 16t2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(-245 + -16t + 4t2) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(-245 + -16t + 4t2)' equal to zero and attempt to solve: Simplifying -245 + -16t + 4t2 = 0 Solving -245 + -16t + 4t2 = 0 Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. -61.25 + -4t + t2 = 0 Move the constant term to the right: Add '61.25' to each side of the equation. -61.25 + -4t + 61.25 + t2 = 0 + 61.25 Reorder the terms: -61.25 + 61.25 + -4t + t2 = 0 + 61.25 Combine like terms: -61.25 + 61.25 = 0.00 0.00 + -4t + t2 = 0 + 61.25 -4t + t2 = 0 + 61.25 Combine like terms: 0 + 61.25 = 61.25 -4t + t2 = 61.25 The t term is -4t. Take half its coefficient (-2). Square it (4) and add it to both sides. Add '4' to each side of the equation. -4t + 4 + t2 = 61.25 + 4 Reorder the terms: 4 + -4t + t2 = 61.25 + 4 Combine like terms: 61.25 + 4 = 65.25 4 + -4t + t2 = 65.25 Factor a perfect square on the left side: (t + -2)(t + -2) = 65.25 Calculate the square root of the right side: 8.077747211 Break this problem into two subproblems by setting (t + -2) equal to 8.077747211 and -8.077747211.

Subproblem 1

t + -2 = 8.077747211 Simplifying t + -2 = 8.077747211 Reorder the terms: -2 + t = 8.077747211 Solving -2 + t = 8.077747211 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + t = 8.077747211 + 2 Combine like terms: -2 + 2 = 0 0 + t = 8.077747211 + 2 t = 8.077747211 + 2 Combine like terms: 8.077747211 + 2 = 10.077747211 t = 10.077747211 Simplifying t = 10.077747211

Subproblem 2

t + -2 = -8.077747211 Simplifying t + -2 = -8.077747211 Reorder the terms: -2 + t = -8.077747211 Solving -2 + t = -8.077747211 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + t = -8.077747211 + 2 Combine like terms: -2 + 2 = 0 0 + t = -8.077747211 + 2 t = -8.077747211 + 2 Combine like terms: -8.077747211 + 2 = -6.077747211 t = -6.077747211 Simplifying t = -6.077747211

Solution

The solution to the problem is based on the solutions from the subproblems. t = {10.077747211, -6.077747211}

Solution

t = {10.077747211, -6.077747211}

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