Question

Let
P= 12xy - 10y2 - 18x²,
Q = 14x2 + 12y2 + 9xy, and
R = 5y2 – x2 + xy
then (P+Q) -R=
(1) 22xy - 3x2 + 3y2
(2) 22xy + 3x2 – 3y2
(3) 20xy – 7x2 – 3y2
(4) 20xy – 3x – 3y2​

Answer 1

Answer:

I can not help you because