Identify the factors of x2 − 4x − 21.

(x − 7)(x + 3)
(x + 7)(x − 3)
(x + 21)(x − 1)
(x − 21)(x + 1)

Question

Identify the factors of x2 − 4x − 21.

 (x − 7)(x + 3)
 (x + 7)(x − 3)
 (x + 21)(x − 1)
 (x − 21)(x + 1)

jhonyy9 · Answer

x^2 -7x +3x -7*3 = ?

do you see it now what and from where you can factorizing out ?

emogirl100 · Answer

is it a

jhonyy9 · Answer

@emogirl100 the rule of OS - please - do not give never directly answers

emogirl100 · Answer

then is it (x − 7)(x + 3)

emogirl100 · Answer

ugh i did my own work i just want to know if i got it right jezz 
@jhonyy9

emogirl100 · Answer

@Zale101 plz help

sshayer · Answer

correct.

emogirl100 · Answer

thx you they gave me a warning because he didnt help me
@sshayer

emogirl100 · Answer

uuuugggggghhhhhhhhh

sshayer · Answer

can,t say anything.

jhonyy9 · Answer

sorry i was occuped with one begined help - but you are right sure

emogirl100 · Answer

@jhonyy9  next time just say nay or yay 
because i got that questoin almost wrong

emogirl100 · Answer

thx u

jhonyy9 · Answer

sorry than i understand you right so this question was wrong ?

just bc. x^2 -7x +3x -7*3 = ? from thes you get 

x*x -7x +3x -7*3 = x(x-7) +3(x-7) = (x+3)(x-7)

this is the right answer sure