Question

if a=[1 2 2 -1] and b=[1 0 2 1] then compute a^2-b^2 and (a+b)(a- b)

Answer 1

Answer:

-1027800

Step-by-step explanation:

a=(122-1)=121

b=1021

$a^{2}-b^{2}$=(a+b)(a-b)

=(121+1021)(121-1021)

=1142×(-900)

=-1027800