( 2/3x + 4 ) (3/2x + 6 ) - ( 1/7x - 1 ) ( 1/7 x + 1 )
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Step-by-step explanation:
(6/6x+12/3x+12/2x+24)-{(1/7x)^2-1^2}
=(1/x+4/x+6/x+24)-1/7x^2+1
=11/x+24-(1/7x)^2+1
=11/x-1/49x^2+25
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