Решите уравнение 1)2x^2+1=19 2) 1/3x^3=9

Question

Решите уравнение
1)2x^2+1=19
2) 1/3x^3=9

Comments

2х^2+1=92х^2=19-12х^2=18х^2=9х=3х=-3

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1/х^3=927х^3=1х^3=1/27х=1/3

Answer 1

1) 2x^2+1=19
2x^2=18
x^2=9
x=3