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DOES X EQUAL Y
GIVEN X=Y? ADD 2
X+2=X+2
X**2+4X+4=Y**2+4Y+4 SQUARE BOTH SIDE
X**2-Y**2=4Y-4X REARRANGE TERMS
(X-Y)(X+Y)=-4(X-Y) FACTOR
(X-Y)(X+Y)/(X-Y)=-4(X-Y)/(X-Y) DIVIDE BOTH SIDES
X+T=-4; X=-4-Y; THEREFORE X DOESN'T EQUAL Y
Submitter comment:
HE LEARNED THIS IN HIGH SCHOOL
Data entry tech comment:
Updated by TRD
Where learned: MICHIGAN ; DETROIT
Keyword(s): Math ; MATHEMATICS ; PUZZLE ; RIDDLE
| Subject headings: | RIDDLE -- Riddle Question |
Date learned: 10-31-1967