Question

Write the expansion formula for (a+b)(a-b)​

Answer 1

Answer:

a^2-b^2

Step-by-step explanation:

(a+b)(a-b)

=a(a-b)+b(a-b)

a^2-ab+ab-b^2

-ab and +ab get cancelled.

thus it gets

a^2-b^2.

hope it helps.

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