The distance covered by a bike is given by the expression, 2y^2+ 6y - 20. The time taken by
the bike to cover this distance is given by the expression, y-2. Find the speed of the bike.
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Answer:
The speed of the bike is 2y + 10
Step-by-step explanation:
Speed = distance/time
Therefore, speed = 2y² + 6y - 20/y - 2
= 2y² - 4y + 10y - 20/y - 2
= 2y(y - 2) + 10(y - 2)/y - 2 (Factorization)
= (y - 2) (2y + 10)/(y - 2) (Further simplified)
= 2y + 10 ( y-2 gets cancelled out )
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