Respuesta :
Answer:
x={-4,-1,0,3}
Step-by-step explanation:
(x²-3x)√x²+5x+4=0
x(x-3)=0
√x²+5x+4=0
x(x-3)=0
x=0
x-3=0
x=3
√x²+5x+4=0
x²+5x+4=0 (square both sides)
x²+4x+x+4=0
x(x+4)+1(x+4)=0
(x+4)(x+1)=0
x+1=0
x+4=0
x=-1
x=-4
Answer:
x={-4,-1,0,3}
Step-by-step explanation:
(x²-3x)√x²+5x+4=0
x(x-3)=0
√x²+5x+4=0
x(x-3)=0
x=0
x-3=0
x=3
√x²+5x+4=0
x²+5x+4=0 (square both sides)
x²+4x+x+4=0
x(x+4)+1(x+4)=0
(x+4)(x+1)=0
x+1=0
x+4=0
x=-1
x=-4