exam Maths Puzzle Numerical Ability

Is the following trinomial a perfect square?
x^2 + 2x - 1

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exam Other Question

4r-3=2r+5 A person can drive from town A to town B at a certain rate of speed in 6 hours. If he increases his speed by 20kph he can make the trip in four hours. How far is it from town A to B.