Question

Find the product of (a+b+c)and (a²+2bc+c²)and verify the result by taking a=-2,b=1,and c=3

Answer 1

given a=-2, b=1,c=3

a+b+c=-2+1+3=2

and

a²+2bc+c²=(-2)²+2(1)(3)+(3)²

= 4+6+9=19

product =19*2=38