document.write( "Question 972547: 1. Given the function f(x) = x^2 + 6x, which of the following equals f(1 + x)? \r
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Algebra.Com's Answer #594854 by Boreal(15235)\"\" \"About 
You can put this solution on YOUR website!
f(1+x)= (x+1)^2 + 6 (x+1)\r
\n" ); document.write( "\n" ); document.write( "= x^2+2x+1+6x+1
\n" ); document.write( "=x^2 +8x+2\r
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\n" ); document.write( "\n" ); document.write( "g(2t+3) \r
\n" ); document.write( "\n" ); document.write( "=2* (2t+3)^2-(2t-3) -1\r
\n" ); document.write( "\n" ); document.write( "=2* (4t^2)+12t+9)-2t+3-1
\n" ); document.write( "=8t^2+22t+20\r
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