Question

x²-3-4x+2=0 me ajudeeem...

Answer 1

a) 1

b) 4

c) 2

∆=b²-4.a.c

∆=4²-4.1.2

∆=16-4.2

∆=16-8

∆=8

$\frac{x = - 4 + \sqrt{d} }{2}$

√∆=√8=2,82..

-4+2,82=-1,18

-1,18

-------- = -0,59

2

x' -0,59

x''= -4-2,82

----------------

2

x"=-6,82..

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2

x"=-3,41

{-3,41_-0,59}