Question

1) Resolva as equações
a) x2 - 16=0 b) 2x2 - 98=0​

Answer 1

a) x2 - 16=0

x²=16

x=√16

x = ±4

b) 2x2 - 98=0

2x²=98

x² = 49

x = √49

x = ±7