Question

Socorro, me ajudem por favor ​

Answer 1

2(-3-x²) -3(0-2x) -2(0-2)=2

-6-2x²+6x+4-2=0

2x²-6x+4=0÷(2)

x²-3x+2=0

x²-x-2x+2=0

x(x-1)-2(x-1)=0

(x-2)(x-1)=0

x-2=0→x=2

x-1=0 →x=1

S={1,2}