1) Factorise the algebraic expression of x2-x-20 a) (x+5)(x-4) b) (x+5)(x+4) c) (x-5)(x+4) d) (x-5)(x-4) e) (x-2)(x-10) f) (x+10)(x+2) 2) Factorise the algebraic expression of 16x4-1 a) (4x2+1)(4x2-1) b) (4x2+1)(2x+1)(2x-1) c) (4x2-1)2 d) (4x2-1)(2x+1)(2x-1) e) (4x2+1)2 3) Factorise the algebraic expression of a2-b2 a) (a+b)(a-b) b) (a+b)2 c) (a-b)2 4) Factorise the algebraic expression of 6x2+54x+120 a) 6(x-4)(x-5) b) 6(x+4)(x+5) c) 6(x+4)(x-5) d) 6(x-4)(x+5) 5) Factorise the algebraic expression of 12x2+10x-100 a) (6x+20)(2x-5) b) (3x+10)(4x-10) c) 2(3x-10)(2x-5) d) 2(3x+10)(2x-5) e) 2(3x+10)(2x+5) f) 2(3x-10)(2x+5) 6) Factorise the algebraic expression of 6a2b+10ab2 a) 2(3a2b+5ab2) b) 2a(3ab+5b2) c) 2ab(3ab+5b) d) 3(2a2b+5ab2) e) 3a(2ab+5b2) f) 2ab(3a+5b) 7) Factorise the algebraic expression of 8a2b+6ab-10ab2 a) 2ab(4a+3-5b) b) 2ab(4a-3+5b) c) 4ab(2a+3-5b) d) 4ab(2a-3+5b) 8) Factorise the algebraic expression of x2+14x+49 a) (x+2)(x+7) b) (x-7)2 c) (x+7)2 d) (x-2)(x-7) 9) Factorise the algebraic expression of x2+9x-52 a) (x-13)(x+4) b) (x-13)(x-4) c) (x+13)(x+4) d) (x+13)(x-4) 10) Factorise the algebraic expression of 5x2+25x-180 a) 5(x2+5x-36) b) 5(x+6)2 c) 5(x+9)(x-4) d) 5(x-9)(x+4) e) 5(x-6)2

Factorising Algebraic Expressions

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