English, asked by saiashzwath7, 2 months ago

simplify (5m-4n)² - (5m+4n)²

Answers

Answered by divyagrover39

3

Answer:

(5m-4n)² - (5m+4n)²

using identity a²-b²=(a+b)(a-b)

(5m-4n+5m+4n)(5m-4n-5m-4n)

(10m)(-8n)

= -80mn

Answered by rabinakumari029

0

Answer:

answer is 80 follow plese please

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