解方程组{a1+a1*q+a1*q^2=26 a1*(a1*q)*(a1*q^2)=-512

问题描述:

解方程组{a1+a1*q+a1*q^2=26 a1*(a1*q)*(a1*q^2)=-512

由2得,(a1*q)^3=-512,所以a1*q=-8
设a1=X,a1*q^2=Y
则y=34-x,xy=64
x^2-34x+64=0
x=2或32
y=32或2
当x=2,y=32时,a1=2,q=-4
当x=32,y=2时,a1=32,q=-0.25