document.write( "Question 150315This question is from textbook
\n" ); document.write( ": y=x^2+2x+1 I discriminant for this what I have can you tell me if this right.
\n" ); document.write( "d=b^2-4ac, 2*2^2-4*1*1, 8-4=4 \n" ); document.write( "

Algebra.Com's Answer #110283 by jim_thompson5910(35256) $\"\"$ $\"About$

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\n" ); document.write( "\n" ); document.write( "From $\"x%5E2%2B2x%2B1\"$ we can see that $\"a=1\"$ , $\"b=2\"$ , and $\"c=1\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"D=b%5E2-4ac\"$ Start with the discriminant formula\r
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\n" ); document.write( "\n" ); document.write( " $\"D=%282%29%5E2-4%281%29%281%29\"$ Plug in $\"a=1\"$ , $\"b=2\"$ , and $\"c=1\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"D=4-4%281%29%281%29\"$ Square $\"2\"$ to get $\"4\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"D=4-4\"$ Multiply $\"4%281%29%281%29\"$ to get $\"%284%29%281%29=4\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"D=0\"$ Subtract $\"4\"$ from $\"4\"$ to get $\"0\"$ \r
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\n" ); document.write( "\n" ); document.write( "Since the discriminant is equal to zero, this means that there is one real solution
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