Respuesta :

Answer:

The expression is equivalent to x^2-17x-60 would be (x - 20)(x + 3)

Step-1 : Multiply the coefficient of the first term by the constant   1 • -60 = -60 

Step-2 : Find two factors of  -60  whose sum equals the coefficient of the middle term, which is   -17 .

     

-60+1= -59

-30+2= -28

-20+3= -17

Final (x + 3) • (x - 20)