Question

multiply a+2b by a-2b and answer is a2-4b2 how???​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

Given:

a+2b x a-2b = a²-4b² ,to prove how?

Solution:

= a(a-2b) + 2b(a-2b)

= a²-2ab+2ab-4b²

= a²-4b²

Hope this may help you!