-16t^2+56t+20=0

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Solution for -16t^2+56t+20=0 equation:


Simplifying
-16t2 + 56t + 20 = 0

Reorder the terms:
20 + 56t + -16t2 = 0

Solving
20 + 56t + -16t2 = 0

Solving for variable 't'.

Factor out the Greatest Common Factor (GCF), '4'.
4(5 + 14t + -4t2) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(5 + 14t + -4t2)' equal to zero and attempt to solve: Simplifying 5 + 14t + -4t2 = 0 Solving 5 + 14t + -4t2 = 0 Begin completing the square. Divide all terms by -4 the coefficient of the squared term: Divide each side by '-4'. -1.25 + -3.5t + t2 = 0 Move the constant term to the right: Add '1.25' to each side of the equation. -1.25 + -3.5t + 1.25 + t2 = 0 + 1.25 Reorder the terms: -1.25 + 1.25 + -3.5t + t2 = 0 + 1.25 Combine like terms: -1.25 + 1.25 = 0.00 0.00 + -3.5t + t2 = 0 + 1.25 -3.5t + t2 = 0 + 1.25 Combine like terms: 0 + 1.25 = 1.25 -3.5t + t2 = 1.25 The t term is -3.5t. Take half its coefficient (-1.75). Square it (3.0625) and add it to both sides. Add '3.0625' to each side of the equation. -3.5t + 3.0625 + t2 = 1.25 + 3.0625 Reorder the terms: 3.0625 + -3.5t + t2 = 1.25 + 3.0625 Combine like terms: 1.25 + 3.0625 = 4.3125 3.0625 + -3.5t + t2 = 4.3125 Factor a perfect square on the left side: (t + -1.75)(t + -1.75) = 4.3125 Calculate the square root of the right side: 2.076655966 Break this problem into two subproblems by setting (t + -1.75) equal to 2.076655966 and -2.076655966.

Subproblem 1

t + -1.75 = 2.076655966 Simplifying t + -1.75 = 2.076655966 Reorder the terms: -1.75 + t = 2.076655966 Solving -1.75 + t = 2.076655966 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + t = 2.076655966 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + t = 2.076655966 + 1.75 t = 2.076655966 + 1.75 Combine like terms: 2.076655966 + 1.75 = 3.826655966 t = 3.826655966 Simplifying t = 3.826655966

Subproblem 2

t + -1.75 = -2.076655966 Simplifying t + -1.75 = -2.076655966 Reorder the terms: -1.75 + t = -2.076655966 Solving -1.75 + t = -2.076655966 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + t = -2.076655966 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + t = -2.076655966 + 1.75 t = -2.076655966 + 1.75 Combine like terms: -2.076655966 + 1.75 = -0.326655966 t = -0.326655966 Simplifying t = -0.326655966

Solution

The solution to the problem is based on the solutions from the subproblems. t = {3.826655966, -0.326655966}

Solution

t = {3.826655966, -0.326655966}

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