Question

10pq+p2q-(qp2+2pq2+5) if p=1 and q=2

Simplify
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Answer 1

Answer: For example

$5p 2 +3q 2 −pq−(4pq−5q 2 −3p 2 )=5p 2 +3q 2 −pq−4pq+5q 2 +3p 2 \\\\=5p 2 +3p 2 +3q 2 +5q 2 −pq−4pq\\=8p 2 +8q 2 −5pq.$

Step-by-step explanation:

Answer 2

1. sorry I don't know
2. sorry