Curve and line

The equation of a curve C is y=2x² -8x+9 and the equation of a line L is x+ y=3

(1) Find the x co-ordinates of the points of intersection of L and C.
(2) Show that one of these points is also the stationary point of C?

Result

a1 =  2
a2 =  1.5
b =  2

Solution:

Solution in text a1 =

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Solution in text a2 =
Solution in text b =







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