Question

factories by splitting the middle term x²-12×-45​

Answer 1

Answer:

x²-12×-45

x²+15x - 3x -45 =0     >>Split -12x >> by writing it as 15x -3x

x(x+15) -3(x+15)=0     >>Now take x common on leftside and -3 on rightside          

x+15=0   or   x-3=0

x=-15      or    x=3.

Answer 2

Answer:

x= -3

x= 15

Step-by-step explanation:

x²-12×-45

x²+3x​-15x-45

(x²+3x)(-15x-45)

x(x+3)-15(x+3)

x= -3

x= 15