my awesomest math puzzle

(A+B)(B-B)
ARCHIMEDES
BRAMHAGUPTA
DAVIDHILBERT
HIPPOCRATES
INTEGERS
IRRATIONAL
ISAACNEWTON
RATIONAL

it contains all math stuff

Try to find all 9 words on this board.

I O S E D E M I H C R A Z I H
D D N Y L D V N J R L T B D C
W ( A + B ) ( B - B ) P S G P
D G G V P B L I Q L J U E S L
O G I G I E G N R N Z G Z E Y
I S L E S D M B N Z W A X T J
F P A C A Z H M L H B H Q A H
U K N X A B F I F I D M B R R
F U O G C H P N L U X A Y C I
U Y I Y N K J T C B E R X O L
I I T R E B O E G G E B A P S
M X A E W E X G Z W P R Z P W
B W R K T Y G E X K F D T I Y
X L R B O T B R N N I N Q H X
V X I P N D Q S L F N E J S C
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Answer Key for my awesomest math puzzle

X
Y
123456789101112131415
1# # S E D E M I H C R A # # #
2# D # # # # # # # # # T # # #
3# ( A + B ) ( B - B ) P # # #
4# # # V # # # # # # # U # S #
5# # # # I # # # # # # G # E #
6# # L # S D # # # # # A # T #
7# # A # A # H # # # # H # A #
8# # N # A # # I # # # M # R #
9# # O # C # # N L # # A # C #
10# # I # N # # T # B # R # O #
11# # T # E # # E # # E B # P #
12# # A # W # # G # # # R # P #
13# # R # T # # E # # # # T I #
14# # R # O # # R # # # # # H #
15# # I # N # # S # # # # # # #
Word X Y Direction
(A+B)(B-B)  33e
ARCHIMEDES  121w
BRAMHAGUPTA  1211n
DAVIDHILBERT  88se
HIPPOCRATES  1414n
INTEGERS  88s
IRRATIONAL  315n
ISAACNEWTON  55s
RATIONAL  313n