(3y-1)(y+1)=4 (2x-3)²+2=3(2x-3) (x-2)²-x=0 (x+3)²-(2x-3)²+0 (2x-1)(x-1)=3
问题描述:
(3y-1)(y+1)=4 (2x-3)²+2=3(2x-3) (x-2)²-x=0 (x+3)²-(2x-3)²+0 (2x-1)(x-1)=3
答
(3y-1)(y+1)=4
3y²+2y-5=0
(3y+5)(y-1)=0
X=1或-5/3