1.

Kindly help and i'll mark u as the brainliest

Answer»

c)

{(<klux>9X</klux> + <klux>2</klux>)}^{2}= 81x^2+18x+4

c is the CORRECT option

as identity USED is a^2+2ab+b^2

(9x)^2+2 * 9x *2 + 4



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