document.write( "Question 127344: Given f(x)= 3x^2+1, find f(a+3) \n" ); document.write( "

Algebra.Com's Answer #93300 by checkley71(8403) $\"\"$ $\"About$

You can put this solution on YOUR website!
Maybe you need to practice the FOIL technique.
\n" ); document.write( "Remember: when you expand the (x+y)^2 term you get 3 terms (x^2,xy,y^2).
\n" ); document.write( "f(x)=3x^2+1
\n" ); document.write( "f(a+3)=3(a+3)^2+1
\n" ); document.write( "f(a+3)=3(a^2+6a+9)+1
\n" ); document.write( "f(a+3)=3a^2+18a+27+1
\n" ); document.write( "f(a+3)=3a^2+18a+28 \n" ); document.write( "

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