Please help me , thank you

Hello BinibiningDel!

Factorise the polynomials.

Method used :-

Use the algebraic identity ⇨ a² + b² = (a + b) (a - b ).Here, a = x & b = 7.

Note :-

I think the question should actually be ⇨ x² - 49.

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Method used :-

Use the algebraic identity ⇨ a² + 2ab + b² = (a + b)².Here, a = a & b = 5.

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Method used :-

Use the splitting the middle term method to factorise this.

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Method used :-

Use the algebraic identity ⇨ a² + b² = (a + b) (a - b ).Here, a = 2x & b = y.

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Method used :-

Take the common factor out & factorise it.

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Method used :-

Use the splitting the middle term method to factorise this.

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Method used :-

Use the algebraic identity ⇨ a³ + b³ = (a + b) (a² - ab + b²).Here, a = y & b = 3.

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Method used :-

Take the common factor out & factorise it.

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Hope it'll help you!

ℓu¢αzz ッ

How many groups are there?