Using suitable IDENTITY,FIND (√3x-√2y-7)²
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(√3x-√2y-7) ²
Identity:a²-b²-c²= a²+b²+c²-2ab+2bc-2ca
Solution: (√3x)²+(√2y) ²+7²-(2×√3x×√2y) +(2×√3x×√2y) -(2×7×√3x)
3x²+2y²+49-2√6xy+14√2y-14√3x
Hope this helps
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