Question

Translate this problem to an equation and solve.
Four times the square of a number is 16. Find the number.

Answer 1

Let x be that number !
So :
\[4x^2=16\]
Then :
\[x^2=4\]
Then :
\[x=\pm2\]

Answer 2

wht the answer @Noura11

Answer 3

\[x=\pm 2\]
means :
\[x=2\text{ or }x=-2\]