Question

已知有理数a.b都不为0,且a+=3b=0,求负b分之a的3次方的值

Answer 1

a+3b=0,a=-3b,a/-b=3

负b分之a的3次方=27

a+=3b=0,a=3b,a/-b=-3

负b分之a的3次方=-27