exam Maths Puzzle Numerical Ability

Find the dimensions of a right triangle if the area is 120 square units and one leg is 4 more than twice the other leg.

Please help!!

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exam Other Question

Please help!! I have spent an hour trying to figure this one out.

e/x=x/2-1 that is e to the x equals x squared minus 1
2) Is (sqrtx)^2=x an identity (true for all nonnegative values of x)?
Answer:
Explain your answer in this space.