document.write( "Question 1037084: Find (fog)(x) and (gof)(x) and the domain of each.\r
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document.write( "f(x)= x+3, g(x)= 2x^2-5x-3
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Algebra.Com's Answer #651788 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Find (fog)(x) and (gof)(x) and the domain of each. \n" ); document.write( "f(x)= x+3, g(x)= 2x^2-5x-3 \n" ); document.write( "------ \n" ); document.write( "fog(x) = f[g(x)] = f[2x^2-5x-3] = 2x^2-5x-3+3 = 2x^2-5x \n" ); document.write( "Domain:: All Real Numbers \n" ); document.write( "----------------- \n" ); document.write( "gof(x) = g[f(x)] = g[x+3] = 2(x+3)^2 - 5(x+3) - 3 = 2x^2+12x+18-5x-3 \n" ); document.write( "= 2x^2 + 7x + 15 \n" ); document.write( "--------------- \n" ); document.write( "Domain:: All Real Numbers \n" ); document.write( "------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "------------ \n" ); document.write( " \n" ); document.write( " |