Question

4× +2 - 5× -7= 3- ×
3. 6. 2

Answer 1

Resposta:

$x\approx \:0.90536\dots$

Explicação passo a passo:

$4x+2-5x-7=3-x^3\times \:6\times \:2$

$-x-5=3-12x^3$

$3-12x^3=-x-5$

$-12x^3+8=-x$

$-12x^3+x+8=0$

$-12x^2-10.86437\dots x-8.83621\dots \approx \:0$

$x\approx \:0.90536\dots$