10x+1
10x+2
x(15x+1)
x(15x+2)
Correct answer is A
This can be done either by using quotient rule or by direct division of the equation, then differentiate.
ddx(5x3+x2x)
= ddx(5x3x+x2x)
= ddx(5x2+x)
= 10x+1
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