solve quadratic equation using factorise x2 - 21x + 108 = 0
Answers
Answered by
32
Heya!!
----------------------------
= x^2 - 21x + 108
= x^2 - 12x - 9x + 108
= x(x-12) - 9(x-12)
= (x-9) (x-12)
= x-9 = 0 =) x = 9
And x-12 = 0 =) x = 12
Hence x = 9 or x = 12.
Hope it helps uh :)
----------------------------
= x^2 - 21x + 108
= x^2 - 12x - 9x + 108
= x(x-12) - 9(x-12)
= (x-9) (x-12)
= x-9 = 0 =) x = 9
And x-12 = 0 =) x = 12
Hence x = 9 or x = 12.
Hope it helps uh :)
Shreya1001:
but the wquation is not to be factorised, it is to be solved
the answers are 12 nd 9
ok
oka! someone reported mine answer.. so I can't edit it.. sry!
can u give me ur number
ok
plz
where u frm
lm frm Delhi
hi
Answered by
12
HOPE THIS WILL HELP YOU!!!!!
PLWASE MARK AS BRAINLIEST!!!!!!
PLWASE MARK AS BRAINLIEST!!!!!!
Attachments:
plz give me
give me numvernumber
sorry
plz
give me ur number
plz
plz a
plz
give me ur number
no I can't give you my number
Similar questions