Question

4x^2 - 4x + 1 =0

conta por favor!!!!

Answer 1

Utilizando a formula de Bhaskara:

a = 4

b = -4

c = 1

$\Delta = b^2-4.a.c\\\\\Delta = (-4)^2-4.4.1\\\\\Delta = 16-16\\\\\Delta = 0\\\\\\x=\frac{-b\pm\sqrt{\Delta}}{2a} \\\\x_1=\frac{-(-4)+\sqrt{0}}{2.4}= \frac{4}{8}= \frac{1}{2} \\\\x_2=\frac{-(-4)-\sqrt{0}}{2.4}= \frac{4}{8}= \frac{1}{2}$

Portanto, as duas raizes da equação são iguais a 1/2.