Bx33x6C的精選

問題詳情：下列運算正確的是().A.x3·x2=x5                     B.(x3)3=x6C.x5+x5=x10                     D.x6-x3=x3【回答】A[解析](x3)3=x9;x5+x5=2x5;x6與x3不能合...