document.write( "Question 62772: this is very difficult for me, can you help?
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document.write( "Let f(x)=5x-6 and g(x)=x^2-8x+16. find the following:
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document.write( "1) (f+g)(x)
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document.write( "2) (g-f)(2)
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document.write( "3) (fg)(5)
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document.write( "4) f/g(x)\r
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document.write( "thanks so much! \n" );
document.write( "
Algebra.Com's Answer #43624 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Let f(x)=5x-6 and g(x)=x^2-8x+16. find the following: \n" ); document.write( "1) (f+g)(x) \n" ); document.write( "=(5x-6)+(x^2-8x+16) \n" ); document.write( "=x^2-3x+10 \n" ); document.write( "-------------- \n" ); document.write( "2) (g-f)(2) \n" ); document.write( "=[(x^2-8x+16)-(5x-6)](2) \n" ); document.write( "=[x^2-13x+22](2) \n" ); document.write( "=2^2-13(2)+22 \n" ); document.write( "=4-26+22 \n" ); document.write( "=0 \n" ); document.write( "-------------- \n" ); document.write( "3) (fg)(5) \n" ); document.write( "=(5x-6)(x^2-8x+16) \n" ); document.write( "=5x^3-40x^2-6x^2+80x+48x-96 \n" ); document.write( "=5x^3-46x^2+128x-96 \n" ); document.write( "Evaluate at x=5 to get: \n" ); document.write( "=5(5^3)-46(25)+128(5)-96 \n" ); document.write( "=19 \n" ); document.write( "------------- \n" ); document.write( "4) f/g(x) \n" ); document.write( "=(5x-6)/(x^2-8x+16) \n" ); document.write( "--------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |