200 - (2 x \(x+6\)) = 64

2 x \(x\) + 6 = 200 - 64

2 x \(x\) + 6 = 136

2 x \(x\) = 136 - 6

2 x \(x\) = 130

\(x\) = 130 : 2

\(x\) 65

Vậy \(x=65\)

200 - (2 . x + 6) = 64

2 . x + 6 = 200 - 64

2 . x + 6 = 136

2 . x = 136 - 6

2 . x = 130

x = 130 : 2

x = 65

Vậy x=65

(x - 10) x 7 = 77

x - 10 = 77 : 7

x - 10 = 11

x = 11 + 10

x = 21

Vậy x = 21

mình sai mình sửa lại

( x - 10 ) . 7 = 77

x - 10 = 77 : 7

x - 10 = 11

x = 11 + 10

x = 21

yêu cầu đề bài là j v bn?

By 2030, robots will be able to do many useful things. They will work in factories, help doctors in hospitals, and even drive cars. Some robots will help with housework like cleaning or cooking. They will also be able to talk and understand people better, which makes them useful for teaching or customer service. However, robots will not be able to feel real emotions or understand humans deeply. They won’t replace all human jobs, especially those that need creativity or care, like teachers or artists. Also, they will still have trouble doing small, careful tasks like folding clothes. Robots in 2030 will be smarter, but they will not think or feel like humans.

A

Đáp án là : A. read

hông có nè lúc đi thi cũng ko tới nỗi đó

Tớ là lúc chuẩn bị đi thi nhưng trong đầu không có tí kiến thức nào cả =)

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yes

-\(x\).(\(x+7\)).(\(x\) - 4) = 0

\(\left[\begin{array}{l}x=0\\ x+7=0\\ x-4=0\end{array}\right.\)

\(\left[\begin{array}{l}x=0\\ x=-7\\ x=4\end{array}\right.\)

Vậy \(x\) ∈ {-7; 0; 4}

\(\frac75.\frac{-5}{12}-\frac56\)

= \(\frac{-7}{12}-\frac56\)

=\(\frac{-17}{12}\)

Gọi số cần tìm là x

Theo đề, ta có: \(x\cdot x\cdot x=64\)

=>\(x^3=64\)

=>\(x^3=4^3\)

=>x=4

3 số giống nhau?