Question

二次根式计算

Answer 1

直接乘进去
2根号3*2根号2+2根号3*3根号3+3根号2*2根号2+3根号2*3根号3
=4根号6+18+12+9根号6
=30+13根号6

Answer 2

原式=2√3*2√2+2√3*3√3+3√2*2√2+3√2*3√3
=4√6+6*3+6*2+9√6
=13√6+30