Question

what is the product of (2a-b)(2a+b)​

Answer 1

Answer:

(2a-b) ×(2a +b) = (2a) ^2 -b^2

= 4a^2 -b^2

Answer 2

Answer:

$4a^2-b^2$

Step-by-step explanation:

=(2a+−b)(2a+b)

=(2a)(2a)+(2a)(b)+(−b)(2a)+(−b)(b)

=4a2+2ab−2ab−b2

⇒4a2−b2

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