Question

Решить уравнения : 8x^2-72=0 5x^2-125=0 12x^2-3=0 50x^2-2=0

Answer 1

1)8х^2=72
х^2=72/8
х^2=9
х=±3
2)5х^2=125
х^2=125/5
х^2=25
х=±5
3)12х^2=3
х^2=3/12
х^2=1/4
х=±1/2
4)50х^2=2
х^2=2/50
х^2=1/25
х=±1/5