Question

(a+b)²-(a-b)² factorise each of the following.

Answer 1

Answer:

(a²+2ab+b²) - (a²-2ab+b²)

a²+2ab+b²-a²+2ab-b²

4ab is the answer.

Step-by-step explanation:

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Answer 2

Answer:

4ab

Step-by-step explanation:

(a+b)²-(a-b)²

from the formula:-

=. a^2+2ab+b^2-(a^2-2ab+b^2)

=. a^2+2ab+b^2-a^2+2ab-b^2

=. a^2-a^2+2ab+2ab+b^2-b^2

=. 0+4ab+0

=. 4ab. Ans.