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Grade: 12 

                        
the number of ordered pairs (x,y) of real numbers that atisfy the simultaneous equations x+y 2 =x 2 +y=12 is
3 years ago

Answers : (1)

Arun
24742 Points 
							
x2– y2
 = x – y
(x – y)(x + y) = x – y
x = y or, x + y = 1
x + x2= 12
x = –4, 3
The required ordered pairs are (–4, –4), (3, 3), & two irrational roots from x2 – x – 11 = 0
3 years ago
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