Question

me ajudem!!!!!!!!!!!

a)x²-1=0
b)x²-16=0
c) x²-64=0
d)x²+16=0
e)3x²=243
f)2x²=50​

Answer 1

Resposta:

a) x²-1=0

X= ±√1

X'=1

X"= -1

b) x²-16=0

X= ±√16

X'= 4

X"= -4

c) x²-64=0

X= ±√64

X'= 8

X"-8

d) x²+16=0

X= ±√-16

X'= 4i

X"= -4i

e) 3x²-243=0

X= ±√243/3 → ±√81

X'= 9

X"= -9

f) 2x²=50

X= ±√50/2→ ±√25

X'= 5

X"= -5