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Given f(x) = 8x -2 and g(x) = 2x – 3, find f – gPlease help me solve this problem

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zigtozag | Student, College Freshman | eNotes Newbie

Posted January 15, 2009 at 4:26 AM via web

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Given f(x) = 8x -2 and g(x) = 2x – 3, find f – g

Please help me solve this problem

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giorgiana1976 | College Teacher | Valedictorian

Posted January 15, 2009 at 5:45 AM (Answer #1)

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f(x)-g(x)=(8x-2)-(2x-3)

Opening the paranthesis and grouping the terms with x together and the free terms together, the result will be:

 f(x)-g(x)=8x-2-2x-(-3)=(8x-2x)+(-2+3)=6x+1

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revolution | College Teacher | Valedictorian

Posted July 21, 2010 at 10:32 PM (Answer #2)

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f(x)= 8x-2 and g(x)= 2x-3

Given these information, we need to find f(x)-g(x). So:

f(x)-g(x)= 8x-2-(2x-3)

= 8x-2-2x+3

= 6x+1

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