x-y=8,xy,=5 find x^-y^
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Answer:
40
Step-by-step explanation:
(x-y=8) (x+y=5) find x^-y^
(using this identity__a^-b^= (a+b) (a-b)
(x-y=8) and (x+y) =5
(x-y) (x+y) = (8) (5)
8×5=40
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above answer is correct
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