Math, asked by imtapan0101, 11 months ago

(-a+3b+7c) ^2 expand it

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Answered by tennetiraj86

6

Answer:

answer for the given problem is given

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Answered by MagicalBeast

1

Answer:

(-a+3b+7c)² = (-a)² + (3b)² +(7c)² +2(-a)(3b) +2(-a)(7c) +2(3b)(7c)

=> a² + 9b² + 49c² - 6ab - 14ac + 42bc

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