(4pq-5q²-3p²)-(5p2+3q²-pq)
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Answer:
(4pq-5q^2-3p^2)-(5p^2+3q^2-pq)
Step1:4pq-5q^2-3p^2-5p^2-3q^2+pq(Because sign changes when bracket is lifted)
Step2:4pq+pq-5q^2-3q^2-3p^2-5p^2
Step3:5pq-8q^2-8p^2