Factorise: (i) x²+1/x²+2-2x-2/x
(ii) 20x²-9x+1
*************Pls...answer fast...****************
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Answered by
3
here is answer to ur question
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batradivjyot25:
But where is the first one??
i kno ur ans to the 1st one as well
but the ans option to ur ques is not coming
K I will ask the same pls try to answer both fast...
ok
Answered by
2
2)20x²-9x+1
=20x²-(5+4)x+1
=20x²-5x-4x+1
=5x(4x-1)-1(4x-1)
=(4x-1)(5x-1)
or,(4x-1)=o
or,4x=1
or,x=1/4
or,5x-1=0
or,5x=1
or,x=1/5
=20x²-(5+4)x+1
=20x²-5x-4x+1
=5x(4x-1)-1(4x-1)
=(4x-1)(5x-1)
or,(4x-1)=o
or,4x=1
or,x=1/4
or,5x-1=0
or,5x=1
or,x=1/5
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