Answer :
[tex] x^{2} - 3x^{2} - 16x + 48 = 0[/tex]
[tex] x^{2} (x - 3) - 16(x - 3) = 0[/tex]
[tex](x - 3) ( x^{2} - 16) = 0[/tex]
[tex](x - 3) (x - 4) (x + 4) = 0[/tex]
[tex]x = -4, 3, 4[/tex]
The zeros are: -4, 3, 4
[tex] x^{2} (x - 3) - 16(x - 3) = 0[/tex]
[tex](x - 3) ( x^{2} - 16) = 0[/tex]
[tex](x - 3) (x - 4) (x + 4) = 0[/tex]
[tex]x = -4, 3, 4[/tex]
The zeros are: -4, 3, 4
