Question

Решите уравнение


y=0.5x^4-4x^2

Answer 1

y=0
0,5x⁴-4x²=0
x²=t, t≥0
0,5t²-4t=0
0,5t(t-8)=0
t=0, t=8
x²=0, x=0
x²=8, x=√8, x=+-2√2
x₁=0
x₂=-2√2
x₃=2√2