SOLUTION: (x + 1)(x + 1) this one is the last homework problem question...thank again!

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Question 72939: (x + 1)(x + 1)
this one is the last homework problem question...thank again!
Found 2 solutions by funmath, tulioalvarenga89:
Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
(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%28x%2B1%29%2B1%28x%2B1%29
x%28x%29%2Bx%281%29%2B1%28x%29%2B1%281%29
Some people call this FOIL, First terms, Outer terms, Inner terms, Last terms.
x%5E2%2Bx%2Bx%2B1
highlight%28x%5E2%2B2x%2B1%29
Happy Calculating!!!!

Answer by tulioalvarenga89(4) About Me  (Show Source):
You can put this solution on YOUR website!
First you factor it.
(x+1)(x+1)= x^2+2x+1
Then you can use the quadratic formula.
a=1
b=2
c=1
-2+-sqrt(2^2-4(1)(1))/2(1)