factorize : \[\large{x^2+(a+b+c)x+ab+bc}\]
I did like this : \[\large{x^2+ax+bx+cx+ab+ac}\] \[\large{x^2+bx+cx+ax+ab+ac}\] \[\large{x(x+b+c)+a(x+b+c)}\] \[\large{(x+a)(x+b+c)}\]
Good..
Its absolutely correct.........
but the book shows answer as : \[\large{(x+b)(x+a+c)}\] which is wrong
so book is wrong?
well its easy to check just simplify the book's answer
How can @mathslover be wrong.. Misprint will be in book..
Yes the book has factorised. \[x^2 + (a+b+c) x + ab + bc\]
yes it is right also : \[\large{(x+b)(x+a+c)}\] \[\large{x^2+ax+cx+bx+ab+cb}\] \[\large{x^2+x(a+b+c)+ab+bc}\]
\[\large{(x+a)(x+b+c)}\] \[\large{x^2+bx+cx+ax+ab+ac}\] even i am wrong
oh sorry i wrote the question wrong it was bc
No how you got cb in last ??
You are not wrong........... This is what the question is ...... ?
@mathslover you have done a mistake in reading question..
:D That's what I used to do.........
There is bc in the last and not ac as you had written earlier..
sorry for the mistake : so here i go with the correct one: \[\large{x^2+(a+b+c)x+ab+bc}\] \[\large{x^2+ax+bx+cx+ab+bc}\] \[\large{x^2+ax+cx+ab+bc+bx}\] \[\large{x(x+a+c)+b(x+a+c)}\] \[\large{(x+b)(x+a+c)}\]
so it is right now?
Very nice
Well Done..
thanks every one ..
sorry for mistake
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