Question

if a=-2,b=-3and c=2 then find value of each of the following
(1) a square +b square +c square
(2) 4abc
(3)ab+bc+ca​

Answer 1

Step-by-step explanation:

Given a=-2,b=-3,c=2

1.(-2)^2+(-3)^2+(2)^2

=4+9+4

= 17

2.4(-2)(-3)(2)

=(8)(6)

=48

3.(-2×-3)+(-3×2)+(2×-2)

=6+(-6)+(-2)

=6-6-2

=-2