Math, asked by moulik434, 6 months ago

use a suitable identity to get each of the following products (2a - 7) (2a - 7) ​

Answers

Answered by lakshisinghal51
12

Answer:

4a²+49-28a

Step-by-step explanation:

= (2a-7)(2a-7)

= (2a-7)²

= (2a)²+(7)²-2×2a×7 using identity (a-b)²=a²+b²-2ab)

= 4a²+49-28a

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