Recent content by Nathi ORea

Ahhhh.. so that’s why they did it! Thank you very much 🙏

Oh. I see. I haven't got to that section yet. Thank you!

What rule says you can bring the 2 outside of it?

Yup. So I used b2 - 4ac to find 28. All good. but I am not sure why they factorised 28?

I appreciate all the replies here guys. Heaps of different ways to think about it! You have all been a huge help!

Thanks for the reply. Doesn't multiplying the numerator twice equal 1 again? -1 x -1 x (b-a)

Appreciate any help.

Is it just neater to have a positive as the numerator or something?

Ok.. that’s what they did aye Is there a reason why they did that?

So I have this question. I get all the working out, but then I feel like the answer should be; -2/(b-a). Then I thought -2/(-a+b) must just be the same thing... all good so far.. Then they somehow just to 2/(a-b) as the final answer.. I'm lost there. How does that conversion happen...

Thanks for that. I went back and learnt how to do it. I appreciate you gave it a name, because it makes it easier to search it up.

Yup. I stuffed up there ;)

Sorry. I am not good with the lingo. I'll remember that. Thanks.

I appreciate your answer. I am a pretty untalented 43 year old who is slowly (very slowly) making his way though a year 11 NSW textbook.. That sentence goes completely over my head.. lol. I do understand that logical pathway though (if that is the correct usage at all), just the leap from...