計算:√27-√8-√12+√(1/32)

計算:√27-√8-√12+√(1/32)


=3根號3-2根號2-2根號3+1/8根號2
=根號3-15/8根號2



√8+√32+√18-√24(2-√2)(3+√2)計算


√8+√32+√18-√24(2-√2)(3+√2)
=2√2+4√2+3√2+√24(√2-2)(√2+3)
=(2+4+3)√2+√24(2+√2-6)
=9√2+√24(√2-4)
=9√2+√48-4√24
=9√2+4√3-8√6



2√18-√32+(√8)/8怎麼做?


2√18-√32+(√8)/8
=6√2-4√2+(√2)/4
=(9√2)/4



2√18-√32+√1/8


2√18-√32+√1/8 =6√2-4√2+√2/4 =(9√2)/4