(6-2x)(8-2x)=24

问题描述:

(6-2x)(8-2x)=24

x=1或x=6

48-16x-12x+4x^2=24
4x^2-28x+24=0
x^2-7x+6=0
)x-1)(x-6)=0
x=1,x=6

(6-2x)(8-2x)=24
(3-x)(4-x)=6
12-3x-4x+x²=6
x²-7x+6=0
(x-1)(x-6)=0
x1=1,x2=6