factorisation p²q-pr²-pq-r²
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=p²q-pr²-pq-r²
=p²q - pq - pr² + r²
=pq ( p - 1 ) - r² ( p - 1 )
=( pq - r² ) ( p - 1 )
bhavesh9866bdpg:
is it full answer
Yes
tq
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