16x^+8x=3 9x^+6x+1=0
问题描述:
16x^+8x=3 9x^+6x+1=0
答
16x^+8x=3
16x^+8x-3=0
(4x-1)(4x+3)=0
x1=1/4 x2=-3/4
9x^+6x+1=0
(3x+1)^=0
x=-1/3