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(81a^(2)-4)-:(9a+2)...

`(81a^(2)-4)-:(9a+2)`

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(81)^(4)-:(9)^(5)=?9b*81c.729d.6561

Simplify (81x^(4)-16x^(2)+32x-16)/(9x^(2)-4x+4)

Simplify (81x^(4)-16x^(2)+32x-16)/(9x^(2)-4x+4)

Factorise:- (81a^2- 72ab + 16b^2)

((81)^(-2))^(1/4)=

sqrt((25)/(81)-(1)/(9))=?(2)/(3)( b) (4)/(9)( c) (16)/(81) (d) (25)/(81)

prove that ((81)/(16))^(-(4)/(4))*{((25)/(9))^(-(3)/(2))-:((5)/(2))^(-3)}=1

prove that ((81)/(16))^(-(4)/(4))*{((25)/(9))^(-(3)/(2))+((5)/(2))^(-3)}=1

-(2)/(3)-(1)/(2)((4)/(9))-(1)/(3)((8)/(27))-(1)/(4)((16)/(81))-…..oo=

-(2)/(3)-(1)/(2)((4)/(9))-(1)/(3)((8)/(27))-(1)/(4)((16)/(81))-…..oo=