Toán Lớp 6: 16:(4.x-2)=8 ; x^3=-8 ;(21-1)^3=-27
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Toán Lớp 6: 16:(4.x-2)=8 ; x^3=-8 ;(21-1)^3=-27
Comments ( 1 )
16:(4x-2)=8
→4x-2=2
→4x=4
→x=1
x^3=-8
→x=-2
(21-x)^3=-27
→21-x=-3
→x=21+3
→x=24