Question

Dada a função f(x) = x^2 - 2x + 1, determine x para, f(x) = 0.

Answer 1

f(x) = x² - 2x + 1
f(x) = 0

x² - 2x + 1 = 0
/\ = (-2)² - 4*1*1
/\ = 4 - 4
/\ = 0
x = -b/2a
x = -(-2)/2
x = 2/2
x = 1