Factoring the equation will give the binomial:
select one:
a. (x – 5)(x + 5) incorrect
b. (x + 5)(x +10)
c. (x – 5)(x – 10)
d. none of the above incorrect

given that triangle abc is transformed two times to get triangle

a"b"c"

first abc is transformed in to a'b'c' as follows:

the coordinates of a are (1,-1) and transformed into a'(-1,1)

similarly b (4,-2) became b'(-4,2) and

c(7,-2) became c'(-7,2)

i.e. (x,y) becomes (-x,-y)

this is nothing but reflection about a point here origin.

thus first transformation is reflection on the origin.

next is exactly shifting 3 units down

source: