Expend : (m+2n-5p)²
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Answer:
(m+2n-5p)² = m² + 4n² + 25p² + 2(m×2n - 2n×5p - 5p×m)
= m² + 4n² + 25p² +2(2mn - 10np - 5pm)
= m² + 4n² + 25p² + 4mn - 20np - 10pm
Hope it helps
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