Question

expand : ( p+q+r)^2


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Answer 1

Answer:

p^2 + q^2 + r^2 + 2pq + 2qr + 2rp

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Answer 2

Step-by-step explanation:

( p+q+r)^2

= $p^{2}+ q^{2} +r^{2} + 2(pq+qr+pr)\\= p^{2}+ q^{2} +r^{2} + 2pq +2 qr+2pr$ (Ans)