Question

resolva as questões:
a) x²=9
b) 2=x²
c) -2x²+5=0
d) 3x²=2
e) 4x²=100

Answer 1

a) x = √9  x=3

b) x = √2

c) x² = -5/-2  ---> x² = 5/2 ---> x=√5/2

d) x² = 2/3 ---> x = √2/3

e) x² = 100/4 ---> x² = 25 ---> x= √25 ---> x= 5