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09-08-2018
Mathematics

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which of the following are solutions?

which of the following are solutions class=

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lesliekolleroxrkcf lesliekolleroxrkcf

09-08-2018

4x²-12x+9=5
4x²-12x+4=0

x= 12±√(144-4*4*4) / 2*4

x= 12 ± √(144-64) / 8

x=12±√80. /. 8

x= 12+4√5. /8

x=3±√5 / 2. C and E

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