How do i Rearranging Equations/formula?

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AI Thread Summary
To rearrange the equation d = v1(t) + 1/2a(t)^2 for time, it is recognized as a quadratic equation. The correct approach involves applying the quadratic formula to isolate t. The friend's suggestion of "-2-v1/a = t" is incorrect. Proper manipulation of the equation leads to a solution that accurately reflects the relationship between distance, initial velocity, acceleration, and time. Understanding the quadratic formula is essential for solving such equations.
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Homework Statement


how would you rearrange this d=v1(t)+ 1/2a(t)^2 for time?


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The Attempt at a Solution


my friend told me it was "-2-v1/a =t" but i don't this is right and if it is right how did he get this?
 
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This is a quadratic equation. Use the quadratic equation formula.
 
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