exam Maths Puzzle Numerical Ability

Determine whether the following equations have a solution or not? Justify your answer.
p2 - 4p + 4 = 0

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exam Other Question

b squared plus 20b plus 36 = 0 MARTIN LEAVES HOME AT 9 AM BICYCLING AT A RATE OF 24 MI/H. TWO HOURS LATER, JOHN LEAVES, DRIVING AT THE RATE OF 48 MI/H. AT WHAT TIME WILL JOHN CATCH UP WITH MARTIN?