Question

x-3 totul la a patra=16, cat este x?

Answer 1

(x-3)⁴=16

(x-3)⁴=2⁴

Cazul 1:

x-3=2

x=5

Cazul 2:

x-3=-2

x=1

Verificare:

Daca x=5:

(x-3)⁴=16

2⁴=16 (adevarat)

Daca x=1:

(1-3)⁴=16

(-2)⁴=16

2⁴=16 (adevarat)

Solutiile satisfac ecuatia initiala, deci sunt corecte.