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Simplifying 4t(t + 5) = -36 Reorder the terms: 4t(5 + t) = -36 (5 * 4t + t * 4t) = -36 (20t + 4t2) = -36 Solving 20t + 4t2 = -36 Solving for variable 't'. Reorder the terms: 36 + 20t + 4t2 = -36 + 36 Combine like terms: -36 + 36 = 0 36 + 20t + 4t2 = 0 Factor out the Greatest Common Factor (GCF), '4'. 4(9 + 5t + t2) = 0 Ignore the factor 4.Subproblem 1
Set the factor '(9 + 5t + t2)' equal to zero and attempt to solve: Simplifying 9 + 5t + t2 = 0 Solving 9 + 5t + t2 = 0 Begin completing the square. Move the constant term to the right: Add '-9' to each side of the equation. 9 + 5t + -9 + t2 = 0 + -9 Reorder the terms: 9 + -9 + 5t + t2 = 0 + -9 Combine like terms: 9 + -9 = 0 0 + 5t + t2 = 0 + -9 5t + t2 = 0 + -9 Combine like terms: 0 + -9 = -9 5t + t2 = -9 The t term is 5t. Take half its coefficient (2.5). Square it (6.25) and add it to both sides. Add '6.25' to each side of the equation. 5t + 6.25 + t2 = -9 + 6.25 Reorder the terms: 6.25 + 5t + t2 = -9 + 6.25 Combine like terms: -9 + 6.25 = -2.75 6.25 + 5t + t2 = -2.75 Factor a perfect square on the left side: (t + 2.5)(t + 2.5) = -2.75 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.
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