“△”是一种新运算,规定:a△b = 3a + 2b,那么2△3 =_______________.
问题描述:
“△”是一种新运算,规定:a△b = 3a + 2b,那么2△3 =_______________.
答
a△b = 3a + 2b
2△3=3×2+2×3=12