3√2*(3√48-2√18-4√1/8)

问题描述:

3√2*(3√48-2√18-4√1/8)

3√2*(3√48-2√18-4√1/8)
=3√2 (12√3-6√2-√2)
=3√2(12√3-7√2)
=36√6-42