Question

a) 20 - 21 - 22 =
b) (-10)2 - 102 =
c) (-4)*- (-4) =​

Answer 1

A) $20 - 21 - 22 = 20-43=-23$

B) $(-10)2 - 102 = -20-102=-122$

C) $(-4)- (-4) = -4+4=0$