规定a*b=4a+3b,求2*3:;3*(1*5)怎么算

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规定a*b=4a+3b,求2*3:;3*(1*5)怎么算规定a*b=4a+3b,求2*3:;3*(1*5)怎么算规定a*b=4a+3b,求2*3:;3*(1*5)怎么算2*3=4×2+3×3=8+9=

规定a*b=4a+3b,求2*3:;3*(1*5)怎么算
规定a*b=4a+3b,求2*3:;3*(1*5)怎么算

规定a*b=4a+3b,求2*3:;3*(1*5)怎么算
2*3=4×2+3×3
=8+9
=17
3*(1*5)=3*(4×1+3×5)
=3*19
=4×3+3×19
=12+57
=69