Question

Y=X elevado ao quadrado -2x+1

Answer 1

x²-2x+1

deltes √(-2)²-4*1*1

√4-4=0

x=2±0/2*1= 1

respost: 1

Answer 2

x^2 - 2x + 1 = 0

a = 1; b = - 2; c = 1

∆ = b^2-4ac

∆ = (-2)^2 - 4.1.1

∆ = 4 - 4

∆ = 0 ( uma raiz)

x = [ - b +/- √∆]/2a

x = [ -(-2) +/- √0]/2.1

x = 2/2

x = 1

R.: x = 1