document.write( "Question 776227: Suppose that the functions r and s are defined for all real numbers x as follows.
\n" ); document.write( "r(x)=2x
\n" ); document.write( "s(x)=3x^2
\n" ); document.write( "write the expressions for (r+s)(x) and (r-s)(x) and evaluate (r*s)(-1).
\n" ); document.write( "(r+s)(x)
\n" ); document.write( "(r-s)(x)
\n" ); document.write( "(r*s)(-1) \n" ); document.write( "

Algebra.Com's Answer #473457 by Tatiana_Stebko(1539) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"%28r%2Bs%29%28x%29=2x%2B3x%5E2\"$
\n" ); document.write( " $\"%28r-s%29%28x%29=2x-3x%5E2\"$
\n" ); document.write( " $\"%28r%2As%29%28x%29=2x%2A3x%5E2=6x%5E3\"$
\n" ); document.write( " $\"%28r%2As%29%28-1%29=6%28-1%29%5E3=-6\"$ \n" ); document.write( "

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