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Instructions
Answer the questions based on the following information. A, S, M and D are functions of x and y, and they are defined as follows.
$$A(x, y)=x + y$$
$$S(x, y)=x-y$$
$$M(x, y)=xy$$
$$D(x,y)=\frac{x}{y}$$. $$y\neq0$$
Solution
Given expression can be reduced to
M ( x(xy+y-x) , (y+x) )
Or x(x+y)(xy+y-x)
After putting value of x and y , expression will reduce to a value = 70.
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