`(7x-11)^3=2^5. 5^2+200`
`=>(7x-11)^3=32.25+200`
`=>(7x-11)^3=800+200`
`=>(7x-11)^3=1000`
`=>(7x-11)^3=10^3`
`=>7x-11=10`
`=>7x=10+11`
`=>7x=21`
`=>x=21:7`
`=>x=3`
Vậy `x=3`
Đáp án:
Giải thích các bước giải:
(7x-11)^3=2^5x5^2+200
=(7x-11)^3=32x25=200
=(7x-11)^3=800+200
=(7x-11)^3=1000
=(7x-11)^3=10^3
=(7x-11)=10
7x=10+11
7x=21
x=21:7
x=3
Vậy x= 3
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