Question

x^2-2x-3=0
resolver em bhaskara​

Answer 1

X²-2X-3=O

∆=(-2)²- 4.1.(-3)

∆= 4+12

∆= 16

X=-b +- √∆

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2*

X= 2+- 4

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2

X¹= 2+4 X¹=3

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2

X²= 2-4 X²= (-1)

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2

Answer 2

x=- b^-4.a.c

A=2 B=-2 C=-3

X=(-2)^-4.2.(-3)

X=4 + 24

X= 28

X=-B +-√∆

2.A

X=-(-2)+_√28

2.2

X=2+_5,29

4

X1=2+5,29= 7,29 =1, 82

4. 4

X2=2- 5,29= -3,29=- 0,82

4. 4