3) The curve y = (1-x)(x2 + 4x + k) has a stationary point when x = -3.
(i) Find the value of the constant k.
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(ii) Determine whether the stationary point is a maximum or minimum point.
[2]
(iii) Given that y = 9x - 9 is the equation of the tangent to the curve at the point A, find the coordinates
of A.

; )

step-by-step explanation: ; )

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.

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