Let P = 12xy – 10y2 – 18x2, Q = 14x2 + 12y2 + 9xy, and R = 5y2 – McqOptions

MCQOPTIONS

1.	Let P = 12xy – 10y2 – 18x2, Q = 14x2 + 12y2 + 9xy, and R = 5y2 – x2 + xy then (P + Q) – R =
A.	20xy – 7x2 – 3y2
B.	20xy – 3x2 – 3y2
C.	22xy – 3x2 + 3y2
D.	22xy + 3x2 + 3y2
Answer» C. 22xy – 3x2 + 3y2

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