Find and simplify the different quotient
f(x+h)-f(x) / h
f(x+h)-f(x) / h =????
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f(x+h) = (x+h)^2 + 5(x+h) + 5
= x^2 + 2xh + h^2 + 5x + 5h + 5
f(x+h) - f(x) / h = x^2 + 2xh + h^2 + 5x + 5h + 5 - x^2 - 5x - 5 / h
= h^2 + 2xh +5h / h
= h + 2x + 5
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