Question

b elevado á 3 - a elevado á 3
sendo q b= -4 e a = -12

Answer 1

$b=-4~e~a=-12\\\\\\ b^3-a^3\to \\\\ (-4)^3-(-12)^3\to \\\\ (-64)-(-1728)\to \\\\ -64+1728\to \\\\ 1664$