How do you simplify (-5x)^2 and write it using only positive exponents?

Jun 5, 2017

$25 {x}^{2}$

Explanation:

${\left(- 5 x\right)}^{2}$

$\therefore - 5 x \times - 5 x$

$\therefore {5}^{2} {x}^{2}$

$\therefore 25 {x}^{2}$