(10-2x)(8-2x)=80-56怎么化简并求解求过程要详细的谢谢!!!

2024-12-17 18:38:08
推荐回答(2个)
回答1:

方程等价于:(X-2)x(X-7)=0;
解为:X1=2;
X2=7

回答2:

(10-2x)(8-2x)=80-56
2(5-x)2(4-x)=24
(5-x)(4-x)=6
(5-x)(4-x)=3x2
x=2
x=-7