( p + q +r )² #mohon bantu
Matematika
Sasazahra
Pertanyaan
( p + q +r )²
#mohon bantu
#mohon bantu
1 Jawaban
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1. Jawaban Murva
( p + q +r )²
= ( p + q +r ) ×( p + q +r )
= p× ( p + q +r ) +q×( p + q +r )+ r×( p + q +r )
=p²+pq+pr +pq+q²+qr +pr+qr+r²
=p² +q² +r² + 2pq +2 pr +2qr