Question

Tìm x:

(x + 2)³ - 41 = 23

Answer 1

\(\text{(x + 2)^3 - 41 = 23}\\ \left(x+2\right)^3=23+41\\ \left(x+2\right)^3=64\\ x+2=4\\ x=4-2\\ x=2\)

Answer 2

Lời giải:
$(x+2)^3-41=23$

$\Leftrightarrow (x+2)^3=23+41=64=4^3$

$\Leftrightarrow x+2=4$

$\Leftrightarrow x=2$

Answer 3

\(\Leftrightarrow\left(x+2\right)^3=64\Leftrightarrow x+2=4\Leftrightarrow x=2\)

Answer 4

\(\Leftrightarrow\left(x+2\right)^3=23+41=64=4^3\\ \Leftrightarrow x+2=4\\ \Leftrightarrow x=2\)

Answer 5

<=> (x+2)³ =23+41

<=> (x+2)³ =64

<=> (x+2)³ = 4³

<=>x+2 =4

<=> x =2