Are there English names for those formulas? (binomial formulas)

[mathwonk]

to me, after these basic facts, the more interesting formula is (r+s)^2 -4rs = (r-s)^2, since this solves quadratic equations x^2 - bx + c, in which b = r+s, and c = rs, where r,s are the roots. I.e. then r,s = (1/2)(r+s ± [r-s]) =
[b ± sqrt(b^2-4c)]/2.

 

[MidgetDwarf]

Maybe they are nameless in america, since students traditionally encounter the binomial theorem near the end of algebra 2?

Is the binomial theorem shown earlier in germany?

 

[fresh_42]

Maybe they are nameless in america, since students traditionally encounter the binomial theorem near the end of algebra 2?

Is the binomial theorem shown earlier in germany?

Wikipedia says in 7th-8th grade (including the numbering we discuss here):
https://de.wikipedia.org/wiki/Binomische_Formeln
(Chrome plus right-click provides a translation to English)