Question

( 7a - 4b raised to 2 ) ( 7a - 4b raised to 2 )


USING SUITABLE IDENTIES AND FIND THE PRODUCT ​

Answer 1

identity used : (a-b)^2 = a^2 - 2ab + b^2

according to the question,
(7a-4b)^2 = (7a)^2 - 2(7a)(4b) + (4b)^2
=49a^ - 56ab + 16b^2

this is the answer
hope it helps