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[" 2Factorise."],[[" (i) "4p^(2)-9q^(2),...

[" 2Factorise."],[[" (i) "4p^(2)-9q^(2)," (ii) "63a^(2)-112b^(2)],[" (iv) "16x^(5)-144x^(3)," (iv) "(1+m)^(2)-(1-m)^(2)],[" (vi) "9x^(2)y^(2)-16," (vii) "(x^(2)-2xy+y^(2))+z^(2)],[" (fiii) "25a^(2)-4b^(2)+28bc-49c^(2)],[" 3.Factorise the expressions."]]

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Factorise. (i) 4p^2 - 9q^2 (ii) 63a^2 - 112b^2 (iii) 49x^2 - 36 (iv) 16 x^5 - 144x^3 (v) (l + m)^2 - (l--m)^2 (vi) 9x^2y^2 - 16 (vii) (x^2 - 2xy + y^2) - z^2 (viii) 25a^2 - 4b^2 + 28bc - 49c^2

Factorise. (i) 4p^2 - 9q^2 (ii) 63a^2 - 112b^2 (iii) 49x^2 - 36 (iv) 16 x^5 - 144x^3 (v) (l + m)^2 - (l--m)^2 (vi) 9x^2y^2 - 16 (vii) (x^2 - 2xy + y^2) - z^2 (viii) 25a^2 - 4b^2 + 28bc - 49c^2

Factorise : (iv) 9x^(2) - (1)/( 16)

Factorise : (x^(2) + 4y^(2) - 9z^(2))^(2) - 16x^(2)y^(2)

Factorise : 25a^2 - 4b^2 + 28bc - 49c^2

Factorise: (i) 49a^(2)+70ab+25b^(2) (ii) (25)/(4)x^(2)-(y^(2))/(9)

Factorise : (iv) 5x^(2) - 4xy - 12y^(2)

Factorise 49x^(2) - 16y^(2) .