Question

: 1) 2х³ - 50x=0;
2) (x-3)²-(x+3)= 24.​

Answer 1

2x³-50x=0

x(2x²-50)=0

x=0, x=5 и x= -5

(x-3)²-(x+3)=24

x²-6x+9-x-3=24

x²-7x-18=0

x= -2

x= 9