exam Maths Puzzle Numerical Ability

Please help me understand this word problem. How could I solve this.
Find the dimensions of a right triangle if the shortest side is 3 less than the middle one and 6 less than the hypotenuse.

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exam Other Question
X^2-6x+4>0. Problem is, the 4 and -6 are not factorable. I tried using quadratic formula and -6^2 is an imaginary #. I ended up getting 3+ or - square root 6i-16. Please help solve the following:



(6^3)(6^-4)

My thoughts are:
1. (6*6*6)X (-6*-6*-6*-6) = 72 x 372 = 26784

2. = 6^-12