exam Maths Puzzle Numerical Ability

How would you write this rational expression in lowest terms?

x^4(x+1)^2/x^2(x+1)

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exam Other Question

Calculate the speed of the following:
A man runs 1000 metres in 184 seconds (calculate his speed in kiometres per hour)

thankyou A man invests a portion of $3,600 at 8% annual interest and the balance at 7%. If he receives $264 interest during the first year, how much did he invest at each rate?