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.

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

X
Y
123456789101112131415
1# # ) # # # # # # # N # # # #
2# # # B # # # # # # O # # # #
3# # T # - # # # # # T # # # #
4# # # R # B # # # # W # S # H
5# # # A E # ( # # # E # E # I
6# # # T S B # ) # # N # D # P
7# # # P R # L # B # C # E # P
8# # # U E # # I # + A # M # O
9# # # G G # # # H # A # I # C
10# # # A E # # # # D S ( H # R
11# # # H T # # # # # I # C # A
12# # # M N # # # # # # V R # T
13# # # A I R R A T I O N A L E
14# # # R A T I O N A L # # D S
15# # # B # # # # # # # # # # #
Word X Y Direction
(A+B)(B-B)  119nw
ARCHIMEDES  1313n
BRAMHAGUPTA  415n
DAVIDHILBERT  88nw
HIPPOCRATES  154s
INTEGERS  513n
IRRATIONAL  513e
ISAACNEWTON  1111n
RATIONAL  414e