Question

A) x²-100=0
B) x²-6+5=0

Answer 1

Boa noite!

A)

x² -100 = 0

x² = 100

x= ±√100

x= ±10

b)

x² -6 +5 = 0

x² -1 = 0

x² = 1

x= ±√1

x= ± 1

Abraços