Question

решите уравнение : 10 x^2= x^4+3x^3

Answer 1

10 x^2= x^4+3x^3
x^4+3x^3 - 10x^2=0
x^2(x^2 + 3x - 10) = 0
D= (9 + 40) = 49
x12=(-3 +- 7)/2 = -5 2
x^2(x-2)(x+5)=0
x=0
x=2
x=-5