write (p-2q+r)power of 2 in expanded form
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Answered by
11
Answer:
(p-2q+r)² = (p-2q+r)(p-2q+r)
= p(p-2q+r) -2q(p-2q+r)+r(p-2q+r)
= (p² - 2pq + rq ) - 2pq + 4q² - (2rq + rp - 2rq + r²)
= p² - 2pq + rq - 2pq + 4q² - 2rq + rp - 2rq + r²
=➡️➡️ p² -4pq - 3rq + 4q² + rp + r²
Answered by
3
Answer:
p (to the power 2) +4q to the power 2 +r ( to the power 2 ) - 4pq-2qr-2pr
Step-by-step explanation:
used the identity of (a+b+c) square
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