合并同类二次根式:(1)(6根号0.75-根号18-根号12)—(0.4根号108-5根号2-4根号0.5)
问题描述:
合并同类二次根式:(1)(6根号0.75-根号18-根号12)—(0.4根号108-5根号2-4根号0.5)
答
您好:(6根号0.75-根号18-根号12)—(0.4根号108-5根号2-4根号0.5)=6√3/4-3√2-2√3-2.4√3+5√2+4√1/2=3√3-3√2-2√3-2.4√3+5√2+2√2=(3-2-2.4)√3+(5+2-3)√2=4√2-1.4√3如果本题有什么不明白可以追问,如...