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2.2 Exercises

From Förberedande kurs i matematik 1

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Övning 2.2:1

Lös ekvationerna

a) x2=1 b) 2x+1=13
c) 31x1=x d) 5x+7=2x6

Övning 2.2:2

Lös ekvationerna

a) 65x9x+2=21 b) 78x+345x7=2
c) (x+3)2(x5)2=6x+4 d) (x2+4x+1)2+3x42x2=(2x2+2x+3)2

Övning 2.2:3

Lös ekvationerna

a) x3x+3x2x+5=0
b) 4x4x712x3=1
c) 1x11x+1x2+21=3x36x1 
d) x2314x+2112x32212x+3112x31=0 

Övning 2.2:4

a) Skriv ekvationen för linjeny=2x+3 på formen y=kx+m
b) Skriv ekvationen för linjen3x+4y5=0 på formen y=kx+m