Q 1: Factorise 9x^{2 } 54x + 81. (3x9)(3x9) (3x+9)(3x+9) (3x+9)(3x9)

Q 2: (6a7b)(6a+7b) = _____? 6a^{2}7b^{2} (12a)^{2}(6b)^{2} (a)^{2}+(7b)^{2} (6a)^{2}(7b)^{2}

Q 3: Express 21a+18b as product of factors. 3(7a+6b) 7(3a+6b) 6(7a+3b)

Q 4: Find the HCF of 12a^{2}, 4ac and 6c^{2}. None of these 2 2ac 2a^{2}b

Q 5: (9x9)(8x+7) = 72x^{2}9x____. Answer:

Q 6: Factorise 19x(6a7b)  4y(6a7b). (19x4y)(6a7b) (19x+4y)(a7b) (10x+2y)(5a2b) (19x+4y)(6a7b)

Q 7: Factorise (3x2y)(3a+b)  (4x3y)(3a+b). (x+y)(3a+b) (xy)(3a+b) (x+y)(3a+b)

Q 8: Find the square root of 729x^{8}y^{10}z^{2}. 27x^{4}y^{5}z 27x^{3}y^{8}z 23x^{4}y^{5}z

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Question 10: This question is available to subscribers only!

