Question

2x²-5x=-2

com o processo pffvv!​

Answer 1

Boa noite!

2x² -5x = -2

2x² -5x +2 =0

a = 2

b= -5

c= 2

∆ = b²-4.a.c

∆ = (-5)²-4.2.2

∆ = 25 - 16

∆ = 9

x= -b±√∆ / 2.a

x= -(-5)±√9/2 .2

x' = 5 + 3 /4

x' = 8/4

x' = 2

x" = 5 -3/4

x" = 2/4

x" = 1/2

s= { 1/2,2}

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