partial fractions

[weary obsidian]

this isnt correct right I got B = 1 but I'm losing my mind

[mossy moat]

you didnt find A

[weary obsidian]

ik this isnt my working

its my teachers

A = -1

[mossy moat]

oh

wait why did he sub in 2

[weary obsidian]

i just dont get where 2 = B(2+1) has come from

exactly

[mossy moat]

he's bugging icl

[weary obsidian]

😭

making me doubt everything

[mossy moat]

to find A you sub in -1 which he did

to find B you sub in 1

[weary obsidian]

mhm yeah so just teacher being weird

thanks piano 👍

[mossy moat]

np