plz solve ... i'll mark you as the brainliest if your ans is correct :)
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Step-by-step explanation:
7x²+5xy-9y²+4y²-3x²-6xy-4x²+xy+5y²=0
7x²-3x²-4x²+5xy-6xy+xy-9y²+4y²+5y²=0
∴0=0
∴P+Q+R=0
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Verified
Step-by-step explanation:
The photo would help you
PLS MARK AS BRAINLIEST
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