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.

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

X
Y
123456789101112131415
1# # ( A + B ) ( B - B ) # # #
2N # # R T # # # # # # # # D #
3O # # C # P # # # # # # A # #
4T # # H # # U # # # # V # # #
5W H # I # # # G # # I # L # #
6E I # M # # # # A D # A # # #
7N P # E # # # # H H N # # # #
8C P # D # # # I # O M # # # #
9A O # E # # L # I # # A # # #
10A C # S # B # T # # # # R # #
11S R # # E # A # # # # # # B #
12I A # R I R R A T I O N A L #
13# T T # # I N T E G E R S # #
14# E # # # # # # # # # # # # #
15# S # # # # # # # # # # # # #
Word X Y Direction
(A+B)(B-B)  41e
ARCHIMEDES  41s
BRAMHAGUPTA  1411nw
DAVIDHILBERT  88sw
HIPPOCRATES  25s
INTEGERS  613e
IRRATIONAL  512e
ISAACNEWTON  112n
RATIONAL  612ne