Đáp án: 3. Tìm x c) `(3x-16).2=4^2` `(3x-16).2=16` `(3x-16) = 16 :2` `3x-16 =8` `3x =8+16` `3x=24` `x=24:3` `x=8` vậy `x=8` mong ctlhn~~ chúc hc tốt Reply
Đáp án:
3. Tìm x
c) `(3x-16).2=4^2`
`(3x-16).2=16`
`(3x-16) = 16 :2`
`3x-16 =8`
`3x =8+16`
`3x=24`
`x=24:3`
`x=8`
vậy `x=8`
mong ctlhn~~
chúc hc tốt
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