exam Maths Puzzle Numerical Ability

( -5 {{{ sqrt (x)}}} + {{{sqrt (y)}}}) ({{{ sqrt (x-4)}}} {{{sqrt (y)}}})
Simplify, Multiply

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exam Other Question

The hypotenuse of a right triangle is 20 centimeters. The sum of the other two sides is 28 centimeters. Find the length of two sides. How can I answer this question. Kindly help me.

3: Which expression is the LCD for 3x-1/ 2^2.3.x^2(x+2) and 2x+7/ 2.3^2.x(x+2)^2

1. 2�3�x(x + 2)
2. 36x(x + 2)
3. 36x2(