规定一种新运算:m*n=mn+m,其中m,n为实数,则a*b+b*a等于多少kkkkkkkkkkkkkkkkkkkkkkk
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![规定一种新运算:m*n=mn+m,其中m,n为实数,则a*b+b*a等于多少kkkkkkkkkkkkkkkkkkkkkkk](/uploads/image/z/1240812-36-2.jpg?t=%E8%A7%84%E5%AE%9A%E4%B8%80%E7%A7%8D%E6%96%B0%E8%BF%90%E7%AE%97%3Am%2An%3Dmn%2Bm%2C%E5%85%B6%E4%B8%ADm%2Cn%E4%B8%BA%E5%AE%9E%E6%95%B0%2C%E5%88%99a%2Ab%2Bb%2Aa%E7%AD%89%E4%BA%8E%E5%A4%9A%E5%B0%91kkkkkkkkkkkkkkkkkkkkkkk)
规定一种新运算:m*n=mn+m,其中m,n为实数,则a*b+b*a等于多少kkkkkkkkkkkkkkkkkkkkkkk
规定一种新运算:m*n=mn+m,其中m,n为实数,则a*b+b*a等于多少
kkkkkkkkkkkkkkkkkkkkkkk
规定一种新运算:m*n=mn+m,其中m,n为实数,则a*b+b*a等于多少kkkkkkkkkkkkkkkkkkkkkkk
a*b=ab+a,b*a=ab+b,a*b+b*a=a+b+2ab