Question

$a^{4}$ . $m^{2}$ . $x^{2}$  - $a^{2}$ . $m^{4}$ = 0

Answer 1

Oi 

a^4*m^2*x^2 - a^2*m^4 = 0

a^4*m^2*x^2 = a^2*m^4

x^2 = a^2*m^4/a^4*m^2 = m^2/a^2

x1 = m/a
x2 = -m/a 

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