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Problem
Problem
The gradient function of a curve is given as
4
x
3
−
7
x
2
−
6
x
4x^3 - 7x^2 - 6x
4
x
3
−
7
x
2
−
6
x
. For what values of
x
x
x
does
d
2
y
d
x
2
=
0
\frac{d^2y}{dx^2} = 0
d
x
2
d
2
y
=
0
?
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