Question

9 4 4 5 用加减乘除，让它们最终等于24！！求求~！！！！急求。

Answer 1

无解。

无解，
4458有很多。

((4+4)-5)*8
(4+(4-5))*8
4-((4-8)*5)
(4+4)*(8-5)
(4-(5-4))*8
((4-5)+4)*8
4-(5*(4-8))
(4*5)-(4-8)
((4*5)-4)+8
4+(5*(8-4))
((4*5)+8)-4
(4*5)+(8-4)
4+((8-4)*5)
((4+4)-5)*8
(4+(4-5))*8
4-((4-8)*5)
(4+4)*(8-5)
(4-(5-4))*8
((4-5)+4)*8
4-(5*(4-8))
(4*5)-(4-8)
((4*5)-4)+8
4+(5*(8-4))
((4*5)+8)-4
(4*5)+(8-4)
4+((8-4)*5)
(5*4)-(4-8)
((5*4)-4)+8
((5*4)+8)-4
(5*4)+(8-4)
(5*4)-(4-8)
((5*4)-4)+8
((5*4)+8)-4
(5*4)+(8-4)
(5*(8-4))+4
(5*8)-(4*4)
(5*(8-4))+4
(5*8)-(4*4)
8-(4-(4*5))
(8-4)+(4*5)
8*((4+4)-5)
8*(4+(4-5))
8-(4-(5*4))
(8-4)+(5*4)
((8-4)*5)+4
8+((4*5)-4)
(8+(4*5))-4
8*(4-(5-4))
8*((4-5)+4)
8-(4-(4*5))
(8-4)+(4*5)
8*((4+4)-5)
8*(4+(4-5))
8-(4-(5*4))
(8-4)+(5*4)
((8-4)*5)+4
8+((4*5)-4)
(8+(4*5))-4
8*(4-(5-4))
8*((4-5)+4)
(8-5)*(4+4)
8+((5*4)-4)
(8+(5*4))-4
(8*5)-(4*4)
(8-5)*(4+4)
8+((5*4)-4)
(8+(5*4))-4
(8*5)-(4*4)

Answer 2

无解

Answer 3

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