Need help, quick

[red sedge]

1. Wait patiently for a helper to come along.
2. Once someone helps you, say thank you and close the thread with:

+close

3. Feel free to nominate the person for helper of the week in #helper-nominations
4. Do not ping the mods, unless someone is breaking the rules.
5. If you're happy with the help you got here, and the server overall, you can contribute financially as well:

[sharp geode]

just ping me when youre here to help

[sharp geode]

please

someone

[proven oriole]

Think of the identity

(a-b)^2=a^2-2ab+b^2

[sharp geode]

yeah

is there one which is like

(a+b+c)^2=a^2+b^2+c^2+2ab+2bc+2ca

[proven oriole]

No

[sharp geode]

ok so what of this

[proven oriole]

Wait imma write it in a simpler form

[proven oriole]

,rotate

[sharp geode]

why does 2x^2 become x^2 while 2y^2 stays the same

[proven oriole]

That’s because I made a writing mistake

My bad

[sharp geode]

ok ok

but how does 2x^2 become x^2

[proven oriole]

Well 2x^2=x^2+x^2

The other x^2 is at the end

[sharp geode]

ok i get it now

[proven oriole]

Nice !

[sharp geode]

thanks dude

[proven oriole]

You’re welcome !

[sharp geode]

can you explain this too

[proven oriole]

Well (x+y)^2-(x-y)^2=4xy

[sharp geode]

yeah

[proven oriole]

And (x+y)^2+(x-y)^2=2(x^2+y^2)

[sharp geode]

yeah

[proven oriole]

Calculate both and multiply them

130 *112

I think

[sharp geode]

okie

[proven oriole]

Do you understand the steps ?

[sharp geode]

yeah

[proven oriole]

Okok good

It’s very similar to trig identities

[sharp geode]

yeah thanks

[proven oriole]

You’re welcome

[sharp geode]

+close