Math, asked by jkaur31101, 1 day ago

use suitable identity (2a-3b) ²+(2a+3b)²​

Answers

Answered by vaishalimahla02
1

Answer:

8a^2 + 18b^2

Step-by-step explanation:

Using Identity a^2 + b^2 =(a+b)^2 - 2ab

(2a-3b) ²+(2a+3b)²​= [(2a-3b) + (2a+3b)]^2 - 2(2a-3b)(2a+3b)

                              => (4a)^2 - 2(4a^2-9b^2)

                              => 16a^2 - 8a^2 + 18b^2

                              => 8a^2 + 18b^2

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