ldcf.net
当前位置:首页 >> y÷1.2=4解方程怎么解 >>

y÷1.2=4解方程怎么解

y÷4-8=1.2 解: y÷4=8+1.2 y÷4=9.2 y=9.2×4 y=36.8

y÷4=1.2+8. y=9.2×4. y=36.8 检验,把y=36.8 带入36.8 ÷ 4-8=9.8-8=1.2

y÷4-8=1.2 y÷4=8+1.2 y=9.2X4 y=36.8

照片

4×2x×2=3 16x=3 X=3/16

14.4÷(x-2.4)=1.2 1.2x(x-2.4)=14.4 1.2x-1.2x2.4=14.4 1.2x=14.4+1.2x2.4=17.28 x=17.28/1.2 =14.4

x=1.2×4.5 x=5.4

去分母得:y+2=y 2 -4+4,…(2分)∴y 2 -y-2=0,…(1分)∴y 1 =2,y 2 =-1,…(2分)经检验知:y 1 =2是增根,舍去,y 2 =-1是原方程的根,…(1分)∴原方程的根是y=-1.

网站首页 | 网站地图
All rights reserved Powered by www.ldcf.net
copyright ©right 2010-2021。
内容来自网络,如有侵犯请联系客服。zhit325@qq.com