-2平方*根号8+3根号2(3-2根号2)-( 根号2-1)

问题描述:

-2平方*根号8+3根号2(3-2根号2)-( 根号2-1)

(-2)2 *√8 + 3√2(3 - 2√2) - (√2 - 1) = 4*2√2 + 9√2 - 12 - √2 + 1= 16√2 - 11 .