А 3•3-4•4=7 (-)
В 3•3-4•1/2=7 (+)
С 3•1-4•(-1)=7 (+)
Д 3•1-4•1=7 (-)
1) (150)^(3/2):(6^(3/2)=(150/6)^(3/2)=(25)^(3/2)=((5^2))^(3/2)=5^3=125
3)(2/3)^(-2)-(1/27)^(1/3)+3*(589)^0=(3/2)^2-∛(1/27)+3*1=9/4-1/3+3=5+1/4-1/3=5-1/12=4+11/12
4) (∛128+∛1/4):∛2=∛128/∛2+∛1/4/∛2=∛128/2+∛1/4/2=∛64+∛1/8=4+1/2
5) (12^(2/3)*(3^(7/3)):4^(-1/3)=(3^(2/3)*4^(2/3)*(3^(7/3)*4^(1/3)=27*4=108
3(^2/3)*3^(7/3)=3^(2/3+7/3)=3^(9/3)=3^3=27
4^(2/3)*4^(1/3)=4^(2/3+1/3)=4^(3/3)=4^1=4
12^(2/3)=(3*4)^(2/3)=3^(2/3)*4^(2/3)
1/(4^(-1/3)=4^(1/3)
<span>4,6:х +4,4= 8,4:3х+5,1 | * 3x
13,8 + 13,2x = 8,4 + 15,3x
2,1х = 5,4
х = 2 4/7
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