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Mathematics 8 Online
OpenStudy (anonymous):

Short Answer. The length of the side of a rectangular desk is given by 3x-y cm. The length of the front is given by 3x+ y cm. What is an algebraic expression for the area of the top of the rectangular desk? Include correct units as part of your answer. Is the equation (3x-y)(3x+y)? F=3x*3x=9x O=3x*y = 3xy I=-y*3x=-3xy L= -y*y=-y(or does this cancel out?) 9x-y

OpenStudy (anonymous):

What do you think it is?

OpenStudy (anonymous):

9x^2-y^2

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