计算(1)2根号7-6根号7(2)根号50+根号32(3)根号12+6根号1/3(4)根号2x-根号8x

问题描述:

计算(1)2根号7-6根号7(2)根号50+根号32(3)根号12+6根号1/3(4)根号2x-根号8x

(1)2根号7-6根号7=-4根号7
(2)根号50+根号32=9根号2
(3)根号12+6根号1/3=4根号3
(4)根号2x-根号8x=-根号2x有详细过程吗(1)2根号7-6根号7=(2-6)根号7=-4根号7 (2)根号50+根号32=5根号2+4根号2=9根号2 (3)根号12+6根号1/3=2根号3+2根号3=4根号3 (4)根号2x-根号8x=根号2x-2根号2x=-根号2x