Question

answer answer answer answer answer answer answer answer​

Answer 1

Answer:

x^2+-1

9-x^2

4x^2-9

4x^2- 4y^2

(xy)^2-a^2

(xy)^2-z^2

x^2-9

Answer 2

Answer:

☆Your answer☆

${x}^{2} + - 1$

$9 - {x}^{2}$

${4x}^{2} - 9$

${4x}^{2} - {4y}^{2}$

${(xy)}^{2} - {a}^{2}$

${(xy)}^{2} - {z}^{2}$

${x}^{2} - 9$

I hope this will help you...