document.write( "Question 1083167: r(x)=x-5,s(x)=4x+2. Write the expression for :(r-s)(x)=,(r*s)(x)=,(r+s)(1)= \n" ); document.write( "

Algebra.Com's Answer #700419 by Fombitz(32388) $\"\"$ $\"About$

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$\"r-s=x-5-4x-2=-3x-7\"$
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\n" ); document.write( " $\"r%2As=%28x-5%29%284x%2B2%29=4x%5E2%2B2x-20x-10=4x%5E2-18x-10\"$
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\n" ); document.write( " $\"r%2Bs=x-5%2B4x%2B2=5x-3\"$
\n" ); document.write( "So when $\"x=1\"$ ,
\n" ); document.write( " $\"r%2Bs=5%281%29-3=5-3=2\"$ \r
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