document.write( "Question 1002709: Did I solve these problems correctly?
\n" ); document.write( "1. f(x)=-3x + 2
\n" ); document.write( "g(x)=3x^2 -x + 2 Find (f + g)(x)
\n" ); document.write( "-3x+2+(3x^2-x+2)
\n" ); document.write( "=3x^2-3x-x+4
\n" ); document.write( "=3x^2-4x-4\r
\n" ); document.write( "\n" ); document.write( "2. f(x)=x -1
\n" ); document.write( "g(x)=2x^2 -2x -5
\n" ); document.write( "Find g(f(x) )
\n" ); document.write( "2x^2 -2x -5(x-1)
\n" ); document.write( "=2x^2 -2x -5x+5
\n" ); document.write( "=2x^2 -7x+5 \r
\n" ); document.write( "\n" ); document.write( "3. f(x)=3x + 2
\n" ); document.write( "g(x)= -2x2 -3x + 5
\n" ); document.write( "Find g(f(x) )
\n" ); document.write( "-2x^2-3x+5(3x+2)
\n" ); document.write( "= -2x^2-3x+15x+10
\n" ); document.write( "=12x-2x^2+10\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #619571 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "1. f(x)=-3x + 2
\n" ); document.write( "g(x)=3x^2 -x + 2 Find (f + g)(x)
\n" ); document.write( "-3x+2+(3x^2-x+2)
\n" ); document.write( "=3x^2-3x-x+4
\n" ); document.write( "=3x^2-4x-4=> correct \"-4\":=\"3x%5E2-4x%2B4\"\r
\n" ); document.write( "\n" ); document.write( "2. f(x)=x -1
\n" ); document.write( "g(x)=2x^2 -2x -5
\n" ); document.write( "Find g(f(x) )
\n" ); document.write( "2x^2 -2x -5(x-1)
\n" ); document.write( "=2x^2 -2x -5x+5
\n" ); document.write( "=2x^2 -7x+5 \r
\n" ); document.write( "\n" ); document.write( "\"g%28f%28x%29+%29\"
\n" ); document.write( "=\"g%28x+-1+%29\"
\n" ); document.write( "=\"2%28x+-1+%29%5E2+-2%28x+-1+%29+-5\"
\n" ); document.write( "=\"2%28x%5E2+-2x%2B1+%29+-%282x+-2+%29+-5\"
\n" ); document.write( "=\"2x%5E2-4x%2B2-2x%2B2-5=2x%5E2-6x-1\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "3. f(x)=3x + 2
\n" ); document.write( "g(x)= -2x^2 -3x + 5
\n" ); document.write( "Find g(f(x) )
\n" ); document.write( "-2x^2-3x+5(3x+2)
\n" ); document.write( "= -2x^2-3x+15x+10
\n" ); document.write( "=12x-2x^2+10\r
\n" ); document.write( "\n" ); document.write( "\"g%28f%28x%29+%29\"\r
\n" ); document.write( "\n" ); document.write( "=\"g%283x+%2B+2+%29\"\r
\n" ); document.write( "\n" ); document.write( "=\"-2%283x+%2B+2+%29%5E2+-3%283x+%2B+2+%29+%2B+5\"\r
\n" ); document.write( "\n" ); document.write( "=\"-2%289x%5E2+%2B+18x%2B4+%29+-%289x+%2B+6+%29+%2B+5\"\r
\n" ); document.write( "\n" ); document.write( "=\"-18x%5E2+-36x-8+-9x+-+6++%2B+5\"\r
\n" ); document.write( "\n" ); document.write( "=\"-18x%5E2+-45x-14++%2B+5\"\r
\n" ); document.write( "\n" ); document.write( "=\"-18x%5E2+-45x-9\"
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