Question

RESPOSTA DA EQUACAOS 2x2=50 , x2-1=0 , -25+x2=0 , 7x2+2=30 , x2+16=0 ? ME AJUDEM

Answer 1

2x^2 =50
x^2 = 50 /2
x = raiz 25
x = 5


-25 + x^2
x = raiz de 25
x = 5


7x^2 + 2 = 30
7x^ 2 = 30-2
7x^2 = 28
x^2 = 28/7
x^2 = 4
x = raiz De 4
x= 2



x^2 +16 =0
x = raiz de 16
x = 4