Question 65322
1449/(600-X)+1539/(600+X)=5
[1449(600-X)+1539(600-X)]/(360000-X^2)=5
(869400-1449X+923400+1539X)/360000-X^2=5
1792800+90X=1800000-5X^2
5X^2+90X-7200=0
X^2+18X-1440=0
(X-30)(X+48)=0
X-30=0
X=30 REAL SOLUTION
X+48
X=-48 SOLUTION
PROOF
1449/(600-30)+1539/(600+30)=5
1449/570+1539/630=5
2.542+2.448=5
5=5
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MERRY CHRISTMAS