Answer:
Step-by-step explanation:
Use - to open the bracket
[tex] - (4t^2 -16t - 20) = \\ - 4 {t}^{2} + 16t + 20[/tex]
Compare the two
: They are not the same
[tex]4t^2 - 16t - 20[/tex]
Note :
[tex] - \times - = + \\ + \times - = - \\ + \times + = + \\ - \times + = - [/tex]