Question

[Nguyễn Hồ Bảo Nhi]

Bài 1

A) 12-(23-17)+|-15|=(3-x)-23-8|-9|)

B)15-(5+x)=7-|-4|+(5-9+|-6|-15)

Bài 2

A) (3x+2)^3=-64

B) 2x-3=-33

Answer 1

[❤ŶêÚ ŤĤúŶ ŃĤấŤ❤]

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Answer 2

[PHẠM PHƯƠNG DUYÊN]

Bài 2:

a) \(\left(3x+2\right)^3=-64\)

\(\Leftrightarrow\left(3x+2\right)^3=\left(-4\right)^3\)

\(\Leftrightarrow3x+2=\left(-4\right)\)

\(\Leftrightarrow3x=-4-2\)

\(\Leftrightarrow3x=-6\)

\(\Leftrightarrow x=-2\)

b) \(2x-3=-33\)

\(\Leftrightarrow2x=-33+3\)

\(\Leftrightarrow2x=-30\)

\(\Leftrightarrow x=-15\)