Question

( 2x-7)^2 solve this using identity 2nd​

Answer 1

Answer

${(2x - 7)}^{2} \\ = 4 {x}^{2} + 49 - 28x$

Identity used:

${(x - y)}^{2} = {x}^{2} + {y}^{2} - 2xy$

Answer 2

Answer:

the identity used is x²+y²-2xy