(1.8-1.8x尀1.2)-(1.3-1.3x尀2)-(5x-0.4尀0.3)=0

2025-01-04 02:29:53
推荐回答(2个)
回答1:

(1.8-1.8x\1.2)-(1.3-1.3x\2)-(5x-0.4\0.3)=0

(1.8-3x\2)-(1.3-1.3x\2)-(5x-4\3)=0
1.8-3x\2-1.3+1.3x\2-5x+4\3=0

-3x\2+1.3x\2-10x/2+1.8-1.3+4/3=0

-11.7x/2+11/6=0
117x/20=11/6
x=(11/6)*(20/117)
x=110/351

回答2:

(OA+OB)^2=12OC+1,