Question

Pls solve sum no 1) v

Answer 1

4x*2y*2 is the answer of 5

Answer 2

Step-by-step explanation:

${4m}^{2} - 36m + 81 \\ = {(2m)}^{2} - 2.2m.9 + {9}^{2} \\ = {(2m + 9)}^{2}$

It is in the form of

${(a - b)}^{2} \\ = {a}^{2} - 2ab + {b}^{2}$