Question

equação do 4º grau
x^4=16
x^4-6=75
x^2-81=0
x^2-25=0

Answer 1

x.x.x.x=16
x=√√16=√4=2

x^4=75+6
x=√√81=√=3

x=√81=9

x=√25=5

Answer 2

Oi Ingnigra

x^4 = 16
x^2 = 4
x1 = 2, x2 = -2

x^4 - 6 = 75
x^4 = 81
x^2 = 9
x1 = 3, x2 = -3

x^2 - 81 = 0
x^2 = 81
x1 = 9, x2 = -9

x^2 - 25 = 0
x^2 = 25
x1 = 5, x2 = -5 

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