Q 1: If xy = 3 and xy = 18, find the value of x^{2}+y^{2}. 45 47 49 43

Q 2: If x  1/x = 3, find the value of x^{2}+1/x^{2} and x^{4}+1/x^{4}. 113 117 115 119

Q 3: Find the product (7x+2y)(7x2y). None of these 49x^{2}2y^{2} 49x^{2}+4y^{2} 49x^{2}4y^{2}

Q 4: (6x^{2}+7x7)(5x) = _____? 30x^{3}35x^{2}+35x None of these 30x^{3}+35x^{2}+35x 30x^{3}35x^{2}+35x

Q 5: (6a7b)(6a+7b) = _____? (6a)^{2}+(7b)^{2} None of these (6a)^{2}(7b)^{2}

Q 6: Expand (5x+2y)^{2}. None of these 25x^{2}20xy+4y^{2} 25x^{2}+20xy+2y^{2} 25x^{2}+20xy+4y^{2}

Q 7: Find the product of (x3)(x5)(x+7). None of these x^{3}x^{2}41x+105 x^{3}x^{2}41x+105 x^{3}x^{2}41x+105

Q 8: Divide (8a^{2}b  16ab^{2} + 36ab) by 4ab. 2a  4ab  9 2a + 4b  9 2a  4b + 9 2a  4b  9

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Question 10: This question is available to subscribers only!

