3t^2-90t-123=

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Solution for 3t^2-90t-123= equation:


Simplifying
3t2 + -90t + -123 = 0

Reorder the terms:
-123 + -90t + 3t2 = 0

Solving
-123 + -90t + 3t2 = 0

Solving for variable 't'.

Factor out the Greatest Common Factor (GCF), '3'.
3(-41 + -30t + t2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-41 + -30t + t2)' equal to zero and attempt to solve: Simplifying -41 + -30t + t2 = 0 Solving -41 + -30t + t2 = 0 Begin completing the square. Move the constant term to the right: Add '41' to each side of the equation. -41 + -30t + 41 + t2 = 0 + 41 Reorder the terms: -41 + 41 + -30t + t2 = 0 + 41 Combine like terms: -41 + 41 = 0 0 + -30t + t2 = 0 + 41 -30t + t2 = 0 + 41 Combine like terms: 0 + 41 = 41 -30t + t2 = 41 The t term is -30t. Take half its coefficient (-15). Square it (225) and add it to both sides. Add '225' to each side of the equation. -30t + 225 + t2 = 41 + 225 Reorder the terms: 225 + -30t + t2 = 41 + 225 Combine like terms: 41 + 225 = 266 225 + -30t + t2 = 266 Factor a perfect square on the left side: (t + -15)(t + -15) = 266 Calculate the square root of the right side: 16.30950643 Break this problem into two subproblems by setting (t + -15) equal to 16.30950643 and -16.30950643.

Subproblem 1

t + -15 = 16.30950643 Simplifying t + -15 = 16.30950643 Reorder the terms: -15 + t = 16.30950643 Solving -15 + t = 16.30950643 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '15' to each side of the equation. -15 + 15 + t = 16.30950643 + 15 Combine like terms: -15 + 15 = 0 0 + t = 16.30950643 + 15 t = 16.30950643 + 15 Combine like terms: 16.30950643 + 15 = 31.30950643 t = 31.30950643 Simplifying t = 31.30950643

Subproblem 2

t + -15 = -16.30950643 Simplifying t + -15 = -16.30950643 Reorder the terms: -15 + t = -16.30950643 Solving -15 + t = -16.30950643 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '15' to each side of the equation. -15 + 15 + t = -16.30950643 + 15 Combine like terms: -15 + 15 = 0 0 + t = -16.30950643 + 15 t = -16.30950643 + 15 Combine like terms: -16.30950643 + 15 = -1.30950643 t = -1.30950643 Simplifying t = -1.30950643

Solution

The solution to the problem is based on the solutions from the subproblems. t = {31.30950643, -1.30950643}

Solution

t = {31.30950643, -1.30950643}

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