Question

(x+3)²=16

 

Answer 1

\(\left(x+3\right)^2=16\)

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

\(x+3=4\)

\(x=4-3\)

\(x=1\)

Answer 2

Ta có:

(x + 3)^2 = 16

(x + 3)^2 = 4^2

=> x + 3 = 4

     x        = 4 - 3

     x        = 1

Vậy x = 1

        

Answer 3

\(\left(x+3\right)^2=16\)

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

\(\Rightarrow\orbr{\begin{cases}x+3=4\\x+3=-4\end{cases}}\)

\(\Rightarrow\orbr{\begin{cases}x=1\\x=-7\end{cases}}\)

tíc mình nha

Answer 4

\(\left(x+3\right)^2=16\)

\(\Rightarrow\orbr{\begin{cases}\left(x+3\right)^2=4^2\\\left(x+3\right)^2=\left(-4\right)^2\end{cases}}\)

\(\Rightarrow\orbr{\begin{cases}x+3=4\\x+3=\left(-4\right)\end{cases}}\)

\(\Rightarrow\orbr{\begin{cases}x=1\\x=\left(-7\right)\end{cases}}\)

Answer 5

Ta có

kết quả là:

= 1

nha bn

vì: ( 1 + 3 )² = 4² = 4 x 4 = 16

Answer 6

\(\left(x+3\right)^2=16\)

\(\Rightarrow\left(x+3\right)^2=\orbr{\begin{cases}\left(-4\right)^2\\4^2\end{cases}}\)

\(\Rightarrow\orbr{\begin{cases}x+3=-4\\x+3=4\end{cases}}\)

\(\orbr{\begin{cases}\left(-4\right)-3=x\\4-3=x\end{cases}}\)

\(\orbr{\begin{cases}x=-7\\x=1\end{cases}}\)

Answer 7

cảm ơn mọi người nhiều nha