Question

3xao quadrdo -4x+1=0

Answer 1

Resposta:

S={1/3,1}

Explicação passo-a-passo:

3x²-4x+1=0

coeficientes

a=3

b=-4

c=1

Δ=b²-4ac

Δ=(-4)²-4(3)(1)

Δ=16-12

Δ=4

$x={-b\pm\sqrt{\Delta} \over2a}={-(-4)\pm\sqrt{4} \over2(3)}={4\pm2\over6}\\ \\ x'={4+2\over6}={6\over6}=1\\ \\ x"={4-2\over6}={2\over6}={1\over3}$