Question

Me ayudan porfa
x2-49=0

2x2-50=0

2x2-50x=0

Answer 1

${x}^{2} - 9 = 0$
${x}^{2} = 9$
$\sqrt{ {x}^{2} } = \sqrt{9}$
$x = 3 \\ x = - 3$
En la otra:
$2 {x}^{2} = 50$
${x}^{2} = \frac{50}{2} = 25$
$\sqrt{ {x}^{2} } = \sqrt{25}$
$x = 5 \\ x = - 5$