SOLUTION: How do I solve Q(t)=x^2-5x+1. Find and simplify Q(7+h)-Q(7)/h
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Question 210953: How do I solve Q(t)=x^2-5x+1. Find and simplify Q(7+h)-Q(7)/h
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
How do I solve Q(t)=x^2-5x+1. Find and simplify [Q(7+h)-Q(7)]/h
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Q(7+h) = (7+h)^2 -5(7+h) + 1
Q(7+h) = 49 + 14h + h^2 - 35 - 5h + 1
Q(7+h) = h^2 + 9h + 15
--------------------------
Q(7) = 49-35+1 = 15
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Q(7+h)-Q(7) = h^2+9h
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Finally: [Q(7+h)-Q(7)]/h = h +9
=========================================
Cheers,
Stan H.
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