exam Maths Puzzle Numerical Ability

Simplify. (Multiply)

( -5 {{{ (sqrt x + sqrt y) }}} )({{{ sqrt (x-4) sqrt (y)}}} )

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exam Other Question

what is the domain and range of this equation: x=-1 Hello,

I am having trouble with these problems:

1. Find the equation of the line that passes through the points A(2,-5) and B(-3,4). Express the result in four different for