x的二次方减4x减32等于0 x(x-2)=3(x-2) (3y-1)的三次方减3等于0 x-3=4(x-3)的二次方x²-4x-32=0x(x-2)=3(x-2)(3y-1)³-3=0x-3=4(x-3)
问题描述:
x的二次方减4x减32等于0 x(x-2)=3(x-2) (3y-1)的三次方减3等于0 x-3=4(x-3)的二次方
x²-4x-32=0
x(x-2)=3(x-2)
(3y-1)³-3=0
x-3=4(x-3)
答
不做,X的3次方
答
x的二次方减4x减32等于0x²-4x-32=0(x-8)(x+4)=0x=8或x=-4x(x-2)=3(x-2)x(x-2)-3(x-2)=0(x-2)(x-3)=0x=2 x=3(3y-1)的三次方减3等于0(3y-1)³=33y-1=3次根号下3y=(1+3次根号下3) /3x-3=4(x-3)的二次...