Respuesta :

Answer:(-x-1)(x-4)

Step-by-step explanation:

[tex]-1(x^{2} -3x-4)[/tex]

factor the equation (multiples of 4 are 1 and 4 and 2 and 2) 4-1=1 so the factor you want to use are 1 and 4

-1(x +1)(x-4) --  -4+1=3

distribute the -1 into the first factor

(-x-1)(x-4)

Answer:

[tex]-x^{2}+3x+4[/tex]

Step by step explanation:

1)  [tex]-1(x^{2}-3x-4)[/tex]

Any expression multiplied by 1 remains the same.

2) [tex]-(x^{2}-3x-4)[/tex]

When there is a ' - ' in front of an expression in parenthesis, change the sign of each term in the expression.

3) [tex]-x^{2}+3x+4[/tex]