Question
Find the value of the expression $x^2+2 x+1$, when $x=-1$
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Answer
The given expression is: $\mathrm{x}^2+2 \mathrm{x}+1$
Put $x=-1$, we get
$x^2+2 x+1=(-1)^2+2(-1)+1$
$=1-2+1$
$=2-2=0$
Put $x=-1$, we get
$x^2+2 x+1=(-1)^2+2(-1)+1$
$=1-2+1$
$=2-2=0$
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