exam Maths Puzzle Numerical Ability

One number is 5 greater than another number. If The sum of their squares is 5 times the square of the smaller number, what are the numbers?

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exam Other Question

Find the LCD,ans convert the expression into an equivalent rationalexpression with the LCD as the denominator.
(3)/4b^2-9, (2b)/2b+3, (-5)/2b^2-3b
11. is the function f(x)=x^5+4x-7 even, odd, or neither?

12. determine the intervals over which f(x)=(x^2-4)^2 is increasing, decreasing, or constant.