Question

9.1² ( using identity 2)​

Answer 1

Step-by-step explanation:

Hola !

9.1²

=9×1

=9

Thank you !

# Astro

Answer 2

Answer:

82.81

Step-by-step explanation:

${9.1}^{2}$

= (9+0.1)^2

= 9^2 + 2×9×0.1 + (0.1)^2

= 81 + 1.8 + 0.01

= 82.81