document.write( "Question 153037: Completely factor the following: r(s) = 2s^2 + st – 2s + t
\n" ); document.write( "@ Normally, this would be solved by the “factor by grouping” method. However, this does not work here due to the last term being added, not subtracted. See a. r(s) = 2(s + t)(s – 1)
\n" ); document.write( "b. r(s) = (2s + t)(s – 1)
\n" ); document.write( "c. This cannot be factored; it’s prime
\n" ); document.write( "d. None of the above
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Algebra.Com's Answer #112612 by checkley77(12844) $\"\"$ $\"About$

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r(s)=2s^2+st–2s+t
\n" ); document.write( "r(s)=2s^2-2s+st+t
\n" ); document.write( "r(s)=2s(s-1)+t(s+1)
\n" ); document.write( "answer d) none of the above.
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