SSC CHSL 20211)Simplify the following expression. (2x - 3y)3 - 18xy (2x - 3y)
8x3 - 72x2y + 108xy2 - 27y3
SSC CHSL 20212)If \(x^2- 6√3 x + 1 = 0\), then the value of \(\rm x^3 + \frac{1}{x^3}\) will be :
630√3
SSC CHSL 20213)If x4 + y4 + x2y2 = 117 and x2 + y2 - xy = 3(4 + √3), then the value of (x2 + y2) will be:
12
SSC CHSL 20214)If (a + b + c) = 0 and (abc) = 12, then what is the value of (a3 + b3 + c3)?
36
SSC CHSL 20215)If \(\rm x^4-\frac{1}{x^4} = 6887\), then the positive value of \(\rm x-\frac{1}{x} \) is:
9
SSC CHSL 20216)If x - y - z = 0, then the value of (x2 + y2 + z2) ÷ (y2 + xz) is:
2
SSC CHSL 20217)The value of \(\left(4\frac{3}{5}+7\frac{2}{5}\right) + \left(7\frac{1}{6}-2\frac{1}{3}\right)\) of is:
8
SSC CHSL 20218)If x2 - 3x + 1 = 0, then the value of \(\rm 2(x^8+\frac{1}{x^8}) - 5(x^2+\frac{1}{x^2})\) is:
4379
SSC CHSL 20219)If a + b + c = 5 and a3 + b3 + c3 - 3abc = 185, then the value of ab + bc + ac lies between:
-7 and -3
SSC CHSL 202110)If 3u + 2v = 7 and uv = 2, then the value of (3u - 2v) is:
1