Question

( 7 . x - 11 )³ = 2⁵ . 2² + 200

cac ban giup minh nhe, minh can gap 

Answer 1

( 7 . x - 11)\(^3\)=2\(^5\). 2\(^2\)+ 200

( 7 . x - 11)\(^3\)=32 . 4  + 200

( 7. x - 11)\(^3\)=328

( 7 . x - 1331) = 328

7 . x                = 328 + 1331

7.x                  = 1659

 x                   = 1659 : 7

x                    = 237

Answer 2

(7x-11)³=2⁵.2²+200

(7x-11)³=2⁷+200

(7x-11)³=128+200

(7x-11)³=328

vô lí vì \(328\ne?^?\)được

vậy x\(\notin\varnothing\)

Answer 3

( 7 . x - 11 )³ = 2⁵ . 2² + 200

( 7 . x - 11 )³ =  128 +200

( 7 x - 11)³ = 328

Answer 4

\(\left(7.x-11\right)^3=2^5.2^2+200\)

\(\left(7.x-11\right)^3=128+200\)

\(\left(7.x-11\right)^3=328\)

Vì \(328\)\(\ne?^?\)đc 

\(\Rightarrow x\in\varnothing\)