Question

factor 4x^2-17x+4 by grouping

Answer 1

@vishweshshrimali5 do you think you could help meh?

Answer 2

\[\large{4x^2 - 17 x+ 4}\]

\[\large{= 4x^2 - 16 x - x + 4}\]

\[\large{= 4x(x - 4) - (x-4)}\]

Can you solve after this ?

Answer 3

Any doubt in any step I wrote above ?

Answer 4

I so hate "factor by grouping". This method is rarely of any value whatsoever - except in a section entitled "factor by grouping". It usually helps me to solve some other way so I can see what "grouping" might be useful.

Answer 5

yep! (4x-1)(x-4). But I feel there's something wrong

Answer 6

Well nothing wrong I think :)

Answer 7

\[\large{(4x-1)(x-4) = 4x^2 - 16x - x + 4}\]

\[\large{= 4x^2 - 17x +4}\]

Correct !

Answer 8

You're right! :) but i am supposed to get: