Question

(m+2n)^2 -5(m+2n) - p (m+2n) + 5p
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Answer 1

Answer:

Solution :-

❖ (m + 2n)² - 5(m + 2n) - p(m + 2n) + 5p

➻ {(m)² + 2 × m × 2n + (2n)²} - 5m - 10n - mp - 2np + 5p

➻ m² + 4mn + 4n² - 5m - 10n - mp - 2np + 5p

∴ The answer of this question is m² + 4mn + 4n² - 5m - 10n - mp - 2np + 5p

Formula used :-

✭ (a + b)²

➞ a² + 2ab + b²