estimate this using suitable identity. please tell me this question then I will mark you the brainlist
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Answered by
1
Answer:
the identity will be (a + b)²
Answered by
1
Answer:
using (a+b)² = a² + 2ab+b²
(7pq)² + 2(7pq)(2p²q²)+(2p²q²)
49p²q²+28p³q³+4p⁴q⁴
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