what should be added to x2 + 3xy+ y2 to get x2 +y2
Answers
Answered by
8
Step-by-step explanation:
let the no. be x
a/q
x²+3xy+y²+x=x²-y²
x²+3xy+y²+x-x²+y²=0
2y²+3xy+x=0
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Answered by
3
Answer:
-3xy
Step-by-step explanation:
let d is added to x2+3xy+y2 to get x2+y2
a/q; x2+3xy+y2+d=x2+y2
d=-3xy
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