Question 72939
(x + 1)(x + 1) 
We're you supposed to multiply this?  You didn't give us the instructions.
If so, multiply the x in the first parentheses time everything in the second, the multiply the 1 in the first parentheses times everything in the second, finally, combine your like terms.
{{{x(x+1)+1(x+1)}}}
{{{x(x)+x(1)+1(x)+1(1)}}}  
Some people call this FOIL, First terms, Outer terms, Inner terms, Last terms.
{{{x^2+x+x+1}}}
{{{highlight(x^2+2x+1)}}}
Happy Calculating!!!!