Question

algebraic expressions for class 6

Answer 1

Step-by-step explanation:

THE fewest examples have been provided to you in the attachments above. Kindly view it.

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Answer 2

Answer:

বীজগণিতের সুত্র সমূহ:

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☞ (a+b)²= a²+2ab+b²

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☞ (a+b)²= (a-b)²+4ab

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☞ (a-b)²= a²-2ab+b²

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☞ (a-b)²= (a+b)²-4ab

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☞ a² + b²= (a+b)²-2ab.

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☞ a² + b²= (a-b)²+2ab.

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☞ a²-b²= (a +b)(a -b)

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☞ 2(a²+b²)= (a+b)²+(a-b)²

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☞ 4ab = (a+b)²-(a-b)²

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☞ ab = {(a+b)/2}²-{(a-b)/2}²

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☞ (a+b+c)² = a²+b²+c²+2(ab+bc+ca)

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☞ (a+b)³ = a³+3a²b+3ab²+b³

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☞ (a+b)³ = a³+b³+3ab(a+b)

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☞ a-b)³= a³-3a²b+3ab²-b³

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☞ (a-b)³= a³-b³-3ab(a-b)

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☞ a³+b³= (a+b) (a²-ab+b²)

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☞ a³+b³= (a+b)³-3ab(a+b)

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☞ a³-b³ = (a-b) (a²+ab+b²)

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☞ a³-b³ = (a-b)³+3ab(a-b)