Here's the question you clicked on:
Denebel
16x^2 + 24x + 9 = 0
|dw:1346056586290:dw| Looking for a way to do this without using a calculator; just pencil and paper... if somehow I can do it by avoiding big numbers?
I couldn't see that! Thanks @quennie
hehe .. you're welcome .. :) it's my pleasure ..
ok lets do it...id say start by simplifying discriminant\[\Delta=24^2-4\times16\times9=24^2-24\times24\]
|dw:1346110890440:dw| so, bcos of having a perfect square .. just .. find the value of x ..