×2-6×+18
![x2 - 6x + 18 x2 - 6x + 18](https://tex.z-dn.net/?f=x2+-+6x+%2B+18)
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x2 - 6x + 18
Using quadratic formula
D = b2 - 4ac
= 36 - 72
= -36
-+b2 + root D/2a
36 -6/2
= +15,-15
Using quadratic formula
D = b2 - 4ac
= 36 - 72
= -36
-+b2 + root D/2a
36 -6/2
= +15,-15
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