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5x -x +3y +y -2 +2
= 4x +4y
b. (p -3q) (2p -5q)
2p² -5pq -6pq +15q²
= 2p² -11pq +15q²
= 5x-x +3y +y -2 +2
= 4x +4y
= x+y
b. (p-3q) (2p-5q)
= 2p^2 -5pq -6pq + 15q^2
= 2p^2 -11pq +15q^2