Question

plz solve My quetions.
$3x ^{2} + 343 = 0$

Answer 1

$3 {x}^{2} + 343 = 0 \\ 3 {x}^{2} = - 343 \\ {x}^{2} = - 7 \\ x = { - 7}^{2}$

Answer 2

Answer:

hope it helps you.......