document.write( "Question 114244: If f(x) =5x and g(x) = 2x+1, find (gof)(-1). Please work for me . I answered
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Algebra.Com's Answer #83138 by MathLover1(20850)\"\" \"About 
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Given:
\n" ); document.write( "\"f%28x%29+=5x\" and \"g%28x%29+=+2x%2B1\"\r
\n" ); document.write( "\n" ); document.write( "Find: \"%28gof%29%28-1%29\"\r
\n" ); document.write( "\n" ); document.write( "Since \"%28f+o+g%29%28x%29+=+f+%28+g%28x%29+%29\" we will have:\r
\n" ); document.write( "\n" ); document.write( "\"%28f+o+g%29%28x%29+=+f+%28+g%28x%29+%29+=+f%282x%2B1%29=+5%282x%2B1%29=+10x+%2B+5\"....now plug in \"x=-1\"\r
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\n" ); document.write( "\n" ); document.write( " \"%28f+o+g%29%28-1%29=+10x+%2B+5=+10%28-1%29+%2B5=+-10%2B5+=+-5\"
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