What is 36x^2-84x+49 completely factored? I REALLY need help!!!

Question

ajprincess · Answer

$a^2x^2-2abx+b^2=(ax-b)^2$
$36x^2-84x+49=6^2x^2-2*7*6x+7^2$
Do you see any similarities between these two @bambam423

anonymous · Answer

They kind of follow the same pattern. Sorta

anonymous · Answer

so that are your factors ]

(6x-7)(6x-7)

anonymous · Answer

Thank You!

anonymous · Answer

its easier to ask yourself, looking at the last term, what times what is equal to 49. since 49 is a perfect square AND positive you know that its (?x-7) (?x-7) because a negative x a negative is a positive.

anonymous · Answer

Does that help a little?

anonymous · Answer

you can apply that to any equation you need factored.
4x^2+20x+25
what times what is 25? 5x5=25
(2x+5) (2x+5)

anonymous · Answer

Yes it does. I know some of it but our teacher is really bad and no one knows the answer! Thank you all! Now I understand better!

anonymous · Answer

Certainly :) im afraid i was a bit late to the party.