Question

If x +1=7,what is the. value of x2+2x+1?

Answer 1

x=5 5*2+2*5+1=21 is the answer

Answer 2

if x +1=7 then x = 6

x^2+2x+1

= 6^2 + 2(6) + 1

=36 + 12 + 1

=49

value of x2+2x+1 is 49