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Question

Question 59 (b)

What should be added to 3pq+5p2q2+p3 to get p3+2p2q2+4pq?

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Solution

In order to find the solution, subtract 3pq+5p2q2+p3 from p3+2p2q2+4pq.
Required expression is
p3+2p2q2+4pq(3pq+5p2q2+p3)=p3+2p2q2+4pq3pq5p2q2p3
On combining the like terms.
=p3p3+2p2q25p2q2+4pq3pq=3p2q2+pq
So, if we add 3p2q2+pq in 3pq2+5p2q2+p3, we get p3+2p2q2+4pq


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