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Algebra.Com's Answer #701260 by 4419875(21) $\"\"$ $\"About$

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If F(x)= 3x^2+x-5 , Find F(1) and F(-3)\r
\n" ); document.write( "\n" ); document.write( "substitute the following, then simplify:
\n" ); document.write( "F(1)= 3(1)^2+(1)-5
\n" ); document.write( " = 3 + 1 -5
\n" ); document.write( " = 4 - 5
\n" ); document.write( " = -1 \r
\n" ); document.write( "\n" ); document.write( "F(-3)= 3(3)^2+(-3)-5
\n" ); document.write( " = 27 - 3 -5
\n" ); document.write( " = 24 - 5
\n" ); document.write( " = 19 \n" ); document.write( "

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