document.write( "Question 68339: Given f(x) = 5x2 – 3x + 1, find f(–2).\r
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Algebra.Com's Answer #48616 by rmromero(383) $\"\"$ $\"About$

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f (x) is often use as a function notation. It doesn't mean f times x rather it refers to the range of the function whose domain is represented by x.
\n" ); document.write( "f(x) = 5x^2 – 3x + 1, find f(–2). f(-2) refer to the value of a function when evaluated for a particular element of the domain.\r
\n" ); document.write( "\n" ); document.write( " $\"f%28-2%29+=+5%28-2%29%5E2+-+3%28-2%29+%2B+1\"$
\n" ); document.write( "f(-2) = 4(5) + 6 + 1
\n" ); document.write( "f(-2) = 20 + 6 + 1
\n" ); document.write( "f(-2) = 27\r
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