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(X-1)(y-1) area as product? And area as sum?
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4 votes
(X-1)(y-1) area as product? And area as sum?

User Ann Jenny
by
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1 Answer

4 votes

Explanation:

product

(x-1)(y-1)

xy-x-y+1

xy-xy+1 (eliminate xy)

=1

sum

x-1 + x-1 + y-1 + y-1

2x-2 + 2y-2

=2x + 2y -4

User Sclv
by
7.4k points
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