Q 1: If a+b+c = 6 and a^{2}+b^{2}+c^{2} = 20, find the value of ab+bc+ca. 4 6 8 2

Q 2: If x+y = 8, xy = 12, find the value of x^{2}+y^{2}. 44 46 40 42

Q 3: Find the value of (58)^{2} using formula. 3354 3374 3384 3364

Q 4: If xy = 3 and xy = 18, find the value of x^{2}+y^{2}. 43 47 45 49

Q 5: Find the product of (x+2)(3x+5). 3x^{2}+11x+10 None of these 3x^{2}11x+10 3x^{2}+9x+10

Q 6: If x1/x = 10, find the value of x^{3}1/x^{3}. 1030 1040 1050 1060

Q 7: Divide [(5a)^{3}(6b)^{3}] by (5a6b). 25a^{3}+30ab+36b^{2} 25a^{2}30ab+36b^{2} 25a^{3}+30ab+36b^{3} 25a^{2}+30ab+36b^{2}

Q 8: (x+1)^{2} = _____? x^{2}+2xy+1 x^{2}+2x+1 x^{2}2x+1 x^{2}+2x1

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