Question

a)x⁴-625=0
b)2x⁴-32=0
c)x⁴-8x²=0
d)x⁴-10 000=0

Answer 1

Olá

a) x⁴ = 625
x = ±⁴√625
x = ± 5

b) 2x⁴ = 32
x⁴ = 32/2
x⁴ = 16
x = ±⁴√16
x = ± 2

c) x⁴ + 8x² = 0
x² = 0
0⁴ + 8 . 0² = , S = {0}


d) x⁴ = 10000
x = ±⁴√10000
x = ±10

Answer 2

a) 5 e -5
b) 2 e -2
c) √-8, s={ø}
d) 10 e -10