(1√2+2√3)乘(4√2-2√3)等于多少

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(1√2+2√3)乘(4√2-2√3)等于多少

(1√2+2√3)乘(4√2-2√3)等于多少
(1√2+2√3)乘(4√2-2√3)等于多少

(1√2+2√3)乘(4√2-2√3)等于多少
(1√2+2√3)×(4√2-2√3)
=4×2-2√6+8√6-12
=-4+6√6

(√2+2√3)(4√2-2√3)
= 2(√2+2√3)(2√2-√3)
= 2(4+3√6-6) = -4+6√6