/sci/ - Science & Math

[Anonymous No.3347537]

(a^3+b^3)(a^2-2ab+b^2) / (a^2-b^2)(a^2-ab+b^2)
=
(a+b)(a^2-ab+b^2)(a^2-2ab+b^2) / (a-b)(a+b)(a^2+ab+b^2)
=
a^2-2ab+b^2 / a-b

can somone point out my mistake the textbook says its just a - b?

[Anonymous No.3347546]

<div class="math">{a^2-2ab+b^2 \over a-b}=a-b</div>

[Anonymous No.3347547]

a^2-2ab+b^2 / a-b is a-b
factorise
(a-b)^2/(a-b)
a-b

[Anonymous No.3347560]

>>3347547
wow im tired or really retarded but you just blew my mind

[Anonymous No.3347565]

Question. I just started college after having been out for years due to deployment. What classification of math is this? Little ol' Math-35-me can't wait to start getting into it eventually.

[Anonymous No.3347575]

>>3347565
I learnt this in year 9 lol . Pretty basic math

[Anonymous No.3347583]

Dude.. you've got the idea that it's a sphere, thats great. and that we rotate around the sun... but what you're missing is that the fucking sun rotates around the supermassive black hole in the middle of the galaxy so this should look more like a circle dragged in the direction of the suns orbit slightly...

[Anonymous No.3347587]

>>3347575

You're aware there is different curriculum for just about every school district, creating a fragmented lesson plan, correct?

[Anonymous No.3347588]

This is algebra 2 it can be tought anywhere from 9th - 12th grade, don't let the DERP DERP I DID THIS AT GRADE 9 discourage you

[Anonymous No.3347594]

>>3347583
Uhh yeah but are you taking into account that the transmission says 200 years, its probably less and the sun would not have moved significantly in that time to show a dragging pattern as it takes 225million years to orbit the central bulge