Question

Quais sao os zeros da função f(x) =
x² - 2x + 1 ?

Answer 1

x² - 2x + 1 = 0

A = 1

B = -2

C = 1

4 -4 * 1 * 1

4 - 4

0

(2+0)/2

X= 1

Answer 2

f(x) =x² - 2x + 1
0 = x^2 - 2x + 1
x^2 - 2x + 1 = 0
a= 1; b = - 2; c = 1
∆= b^2-4ac
∆ = (-2)^2 - 4.1.1
∆ = 4-4
∆= 0

x = [-b +/- √∆]/2a
x= [ -(-2)+/- 0]/2.1
x = 2/2
x = 1

R.: x = 1