Question

PLZ ANSWER THE GIVEN QUESTIONS

Answer 1

Answer:

(81x^2-49x^2y^2)

Step-by-step explanation:

9x-7xy

(9x-7xy)^2

Answer 2

Answer:

$81 {x}^{2} - 126 {x}^{2}y + 49 {x}^{2} {y}^{2}$

Step-by-step explanation:

THE SQUARE OF 9x-7xy MEANS

(9x-7xy)(9x-7xy)

$= {(9x - 7xy)}^{2}$

$= 81 {x}^{2} - 126 {x}^{2}y + 49 {x}^{2} {y}^{2}$