0.7x^4-3x^3=0 3x^3-x^3+18x-6=0 3y^-2y=3y^3-3 x^4-5x^2-36=0 y^4+14y^2+48=0

Question

0.7x^4-3x^3=0

3x^3-x^3+18x-6=0

3y^-2y=3y^3-3

x^4-5x^2-36=0

y^4+14y^2+48=0

Answer 1

1. 0.7x^4-3x^3=0

x^3=0 или 0.7x-3=0 =>3/0.7

x=0            x≈4.286

2.√3/2

3.Правильно ли написан?

4.х=3

5.х╪0