document.write( "Question 287931: if f(x)=2x-3and g(x)=x^2+1 fog(-1) (gof) (4)I thank you in advanced please help me here .and with this onefind (f-g) (x) f(x) =x^2 -2x-24 and g(x)=x^2 -x-30 \n" ); document.write( "
Algebra.Com's Answer #208735 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! If f(x)=2x-3 and g(x)=x^2+1 fog(-1) (gof)(4) \n" ); document.write( "--- \n" ); document.write( "fog(-1) \n" ); document.write( "Step 1: find g(-1) = (-1)^2+1 = 1+1 = 2 \n" ); document.write( "So, f[g(-1)] = f(2) \n" ); document.write( "Step 2: find f(2) = 2(2)-3 = (4-3) = 1\r \n" ); document.write( "\n" ); document.write( "==================================================\r \n" ); document.write( "\n" ); document.write( "find (f-g) (x) f(x) =x^2 -2x-24 and g(x)=x^2 -x-30 \r \n" ); document.write( "\n" ); document.write( "(f-g)x = f(x)-g(x) \n" ); document.write( "Step 1: subtract g(x) from f(x) \n" ); document.write( "= (x^2-2x-24) - (x^2-x-30) \n" ); document.write( "Sept 2: simplify \n" ); document.write( "= -2x+x -24+30 \n" ); document.write( "= -x + 6 \n" ); document.write( "============== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "============== \n" ); document.write( " |