document.write( "Question 201725: f(x)+3x^2-x+4\r
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Algebra.Com's Answer #151951 by solver91311(24713) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "Let's start with an understanding of the meaning of the various parts of the notation.

is the function, whereas

is the value of the function at

. That means anytime you see f(something), it means the value of the function at that something. In other words, you simply replace

in the definition of

with the something in f(something). So:\r
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\n" ); document.write( "\n" ); document.write( "Do the other two problems the same way.\r
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