Solve x^2002+10x^2001/10x^2002=957.9.
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Answered by
11
Answer:
93
Step-by-step explanation:
x2002+10x200110x2000=957.9
Multiplying both the sides by 10
x2002+10x2001x2000=9579
∴x2002x2000+10x2001x2000=9579
∴x2002−2000+10x2001−2000=9579 ……… (aman=am−n)
∴x2+10x−9579=0
∴x2+10x+25−25−9579=0 .[Add 25 to make x2+10x a perfect square]
∴lx2+10x+25−9604=0
∴(x+5)2−(98)2=0
∴(x+5+98)
(x+5−98)=0
∴(x+103)(x−93)=0
∴x+103=0 or x−93=0
∴x=−103 or x=93
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