Grade 12Algebra
the number of ordered pairs (x,y) of real numbers that atisfy the simultaneous equationsx+y2=x2+y=12 is
the number of ordered pairs (x,y) of real numbers that atisfy the simultaneous equations
x+y2=x2+y=12 is
1 Answer
Arun
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
= 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
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