Question

qual e a resposta as solucao da equaca
o (x+3)(2x+8)=0

Answer 1

( x + 3 ) ( 2x + 8 ) = 0

2x² + 8x + 6x + 24 = 0

2x² + 14x + 24 = 0

x² + 7x + 12 = 0

x = - 7 + - √49 - 48
     ----------------------
               2

x' =  - 7 + 1
      -----------  →  x' = - 3
           2

x" = - 7 - 1
      ----------  →  x" = - 4
           2

Answer 2

x+2x=8+3
3x=11
x=11/3
X=3