document.write( "Question 49969This question is from textbook Beginning Algebra
\n" ); document.write( ": given f(x)=5x to the second power-3x +1, find f(-2)\r
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given f(x)=5x to the second power-3x +1, find f(-2)
\n" ); document.write( "f(x)=5x^2-3x+1
\n" ); document.write( "f(x)=5(-2)^2-3(-2)+1 [Substitute (-2) for (x)]
\n" ); document.write( "f(x)=(5)(4)+6+1 [Simplify]
\n" ); document.write( "f(x) = 20 +6 + 1 = 27 \n" ); document.write( "

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