Question

${80}^{2} - {81}^{2}$

Answer 1

SOLUTION:-

80^2 -81^2

= (80+81)(80-81)

= 161×(-1)

=[ -161]ans

Answer 2

Heya!!

This is the formula (a)²- (b)² = (a-b)(a+b)

(80)²-(81)² = (80-81)(80+81)
= -1×161
= -161

Hope this helps you ^_^