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cwrw238
 3 years ago
Question from uk math challenge:
How many distinct pairs (x,y) of real numbers satisfy the equation (x + y)^2 = (x + 4)(x  4)
A 0 B 1 C 2 D 3 E 4
I think its B.
cwrw238
 3 years ago
Question from uk math challenge: How many distinct pairs (x,y) of real numbers satisfy the equation (x + y)^2 = (x + 4)(x  4) A 0 B 1 C 2 D 3 E 4 I think its B.

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cwrw238
 3 years ago
Best ResponseYou've already chosen the best response.1ooopps  sorry my error its (x + y)^2 = (x + 4)(y  4)

cwrw238
 3 years ago
Best ResponseYou've already chosen the best response.1oh  i've assumed they mean real integers
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