If A = -Bx® - 8xy + 3yº , B = 4y + 2x* + 9xy. C = -7xy + 5yə - 8x®
Find the value of A+B-C.
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A+B+C = -B x^® -8xy + 3 y^° + 4y + 2x* +9xy -7xy + 5ya - 8 x^®
or, A+B+C = -6xy +3 y^° + 4y +2x*+ 5ya - (B+8) x^®
or, A+ B+ C = -6xy + 3 + 4y + 2x* + 5ya - (B+8 )x^®. (since, y^°= 1)
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