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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
the number of ordered pairs (x,y) of real numbers that atisfy the simultaneous equationsx+y2=x2+y=12  is

```
3 years ago

## Answers : (1)

Arun
25768 Points
```							x2– y2 = x – y(x – y)(x + y) = x – yx = y or, x + y = 1x + x2= 12x = –4, 3The required ordered pairs are (–4, –4), (3, 3), & two irrational roots from x2 – x – 11 = 0
```
3 years ago
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