1.

गुणनखण्ड कीजिए : (i) `64x^(2)-(7y+4z)^(2)` (ii) `3x^(3)y-243y^(3)` (iii) `(49)/(81)x^(2)-(1)/(25)` (iv) `a^(4)-b^(4)` (v) `x^(4)-25y^(4)`

Answer» Correct Answer - (i) `(8x-7y-4z)(8x+7y+4z)`
(ii) `3xy(x+9y)(x-9y)`
(iii) `((7)/(9)x-(1)/(5))((7)/(9)x+(1)/(5))`
(iv) `(a-b)(a+b)(a^(2)+b^(2))`
(v) `(x^(2)+5y^(2))(x^(2)-5y^(2))`


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