Question

resolva as equções: $x^{2} -25=0$

Answer 1

x ² = 25
x=√ 25
x= + - 5

Answer 2

Come on! rs

$x^{2} -25=0 \\ x^{2} =25 \\ x=+- \sqrt{25} \\ x=+-5$

S = { -5 , 5 }

Valeu! ^^