Question

Resolva:

a) x²-36=0

b) 2x²=50

c) x²-1=0​

Answer 1

$a) {x}^{2} - 36 = 0$

${x}^{2} = 36$

$x = \sqrt{36}$

$x = 6$

_____

$b)2 {x}^{2} = 50$

${x}^{2} = \frac{50}{2}$

${x}^{2} = 25$

$x = \sqrt{25}$

$x = 5$

_____

$c) {x}^{2} - 1 = 0$

${x}^{2} = 1$

$x = \sqrt{1}$

$x = 1$