Question

The coefficient of x2 in the expansion of (x2 + x + 1)2 + (x2 - x + 1)2 is​

Answer 1

Answer:

2 is the coefficient of x^2

Answer 2

Answer:

x2+x+1)2+(x2-x+1)2=0

x4+x2+2+x4-x2+2=0

x6+2-x2+2=0

x6-x2+4=0

x4+4=0

x4=-4

x=-4/4

x=-1