Factorise : (i) 15(5x−4)2−10(5x−4)(ii) 3a2x−bx+3a2−b(iii) b(

1.	Factorise : (i) 15(5x−4)2−10(5x−4)(ii) 3a2x−bx+3a2−b(iii) b(c−d)2+a(d−c)+3(c−d)(iv) ax2+b2y−ab2−x2y(v) 1−3x−3y−4(x+y)2
Answer» Factorise : $(i) 15 (5 x - 4)^{2} - 10 (5 x - 4) (i i) 3 a^{2} x - b x + 3 a^{2} - b (i i i) b (c - d)^{2} + a (d - c) + 3 (c - d) (i v) a x^{2} + b^{2} y - a b^{2} - x^{2} y (v) 1 - 3 x - 3 y - 4 (x + y)^{2}$

Factorise : (i) 15(5x−4)2−10(5x−4)(ii) 3a2x−bx+3a2−b(iii) b(c−d)2+a(d−c)+3(c−d)(iv) ax2+b2y−ab2−x2y(v) 1−3x−3y−4(x+y)2

Answer»

Factorise :

$(i) 15 (5 x - 4)^{2} - 10 (5 x - 4) (i i) 3 a^{2} x - b x + 3 a^{2} - b (i i i) b (c - d)^{2} + a (d - c) + 3 (c - d) (i v) a x^{2} + b^{2} y - a b^{2} - x^{2} y (v) 1 - 3 x - 3 y - 4 (x + y)^{2}$

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Factorise : (i) 15(5x−4)2−10(5x−4)(ii) 3a2x−bx+3a2−b(iii) b(c−d)2+a(d−c)+3(c−d)(iv) ax2+b2y−ab2−x2y(v) 1−3x−3y−4(x+y)2

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