sagarstha206203
Answered

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2.
a) Expand: a² - b²​

Sagot :

bhadelsimron19

Answer:

Step-by-step explanation:

a^2-b^2

(a-b)(a+b)

pc192y

Answer:

[tex](a-b)(a+b)[/tex]

Step-by-step explanation:

This particular pattern: [tex]a^2-b^2[/tex]; is the difference of squares pattern.

Difference of Squares Pattern: [tex](a-b)(a+b)=a^2-b^2[/tex]

There are other square of binomial patterns (though the difference of squares pattern isn't really a square of binomial, I learned these three at the same time)

[tex](a+b)^2=a^2+2ab+b^2[/tex]

[tex](a-b)^2=a^2-2ab+b^2[/tex]

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