exam Maths Puzzle Numerical Ability

1. (2 x square root of 75)(5 x square root of 65)


2. (3 x square root of 13)squared

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exam Other Question

I hate word problems! help please!

Number problem. If one-half of one integer is subtracted from three-fifths of the next consecutive integer, the difference is 3. What are the two integers?
pROBLEM# 27..EX
Factor. 8m^4n - 16mn^4

pROBLEM #28
Factor completely. 3(x - 2)^2 - 3(x - 2) - 6

pROBLEM#29
Factor completely. 6x^2 - xy - 5y^2

pROBLEM#30