11xy - x²- 4 and - 14xy + 5x²
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12xy+5x²-4. Step-by-step explanation: we have, (11xy-x²-4)+(-14xy+5x²) = (-3xy-4+4x²). now, add 15xy+x²+2 in this eq. so,.
nidhithelawyer:
thank you
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