document.write( "Question 829945: Can someone please show me the steps to factor a trinomial? It's for college Algebra. \r
\n" ); document.write( "\n" ); document.write( "Factor the trinomial or state that the trinomial is prime.\r
\n" ); document.write( "\n" ); document.write( "5a^2 -4a-28\r
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Algebra.Com's Answer #500258 by MathTherapy(10552)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "Can someone please show me the steps to factor a trinomial? It's for college Algebra. \r
\n" ); document.write( "\n" ); document.write( "Factor the trinomial or state that the trinomial is prime.\r
\n" ); document.write( "\n" ); document.write( "5a^2 -4a-28

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document.write( "Apply the \"ac\" method
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document.write( "From the trinomial, \"5a%5E2+-+4a+-+28\",
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document.write( "a = 5
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document.write( "b = - 4
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document.write( "c = - 28\r
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document.write( "ac = 5(- 28), or - 140
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document.write( "As \"ac\" = - 140, and b = - 4, we need to determine which 2 numbers have a product of - 140, and sum to b, or - 4\r
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document.write( "These 2 numbers are: + 10 and - 14
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document.write( "\"5a%5E2+%2B+10a+-+14a+-+28\" ----- Replacing - 4a with (10a - 14a)
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document.write( "\"5a%28a+%2B+2%29+-+14%28a+%2B+2%29\" ------ Factoring each pair of expressions
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document.write( "\"highlight_green%28%285a+-+14%29%28a+%2B+2%29%29\"
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document.write( "You can do the check!! \r
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