...unlike physics or chemistry or biology, can't be seen or smelled or observed....
something I found on the internet so Math does not exist
Why does everyone use apples, not pears or oranges or trucks and cd players???
From calculator:
9y*9y+y*y-8y*8y = 18*y^2
Steps:
9y*9y+y*y-8y*8y
=81y*y+y*y-64y*y
=(81-64+1)y*y
=18 y^2
seven
yer wot?
350*349*348*347*346/1/2/3/4/5 = 42530162570
Look what a hard first question!!!
hahaha
Um...9 quadrillion
