Math, asked by rani898490, 1 year ago

find out the square of this---- p+q+r+s

Answers

Answered by satheeshsrileka

0

Step-by-step explanation:

what is pqrs stands for ??

Answered by sreeja4713

1

(p+q+r+s)² = (p+q+r+s)(p+q+r+s)

= p²+pq +pr+ps+qp+q²+qp+qr+qs+rp+rq+r²+rs+sp+sq+sr+s²

=p²+q²+r²+s²+2pq+2rp+2sp+2qr+2qr+2qs+2rs

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