A-b.a+b= giúp mình nhé

Prashant Sharma asked Mar 24, 2022

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5 votes

A-b.a+b=
giúp mình nhé

Prashant Sharma asked Mar 24, 2022

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18 votes

Explanation:

Did you mean:

= (a - b)(a + b)

= a.a + b.a - b.a - b.b

= a² + ba - ba - b²

= a² - b²

Frekster answered Mar 28, 2022

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