The dormitories were being cleaned by some girls.

if x² – 2x + 1 = 0, then find the value of (x⁷ + x⁵ + x⁴ + x²)/x ?

Rs. 25200 is invested in 3 parts in such a way that Simple Interest on 1^st Part at 4% per annum for 3 years, Simple Interest on 2^nd

If y + 1/y = 2 then find y¹¹⁷ + 1/(y¹¹⁷)

Find the values of x and y if 0.1x + 0.05y = 20 and 0.3(x+2) +0.6y = 66.

What is the value of (a² + b²+4c²- ab-2bc-2ca) (a + b+2c):

If x⁴ + x ^{- 4} = 47 then find the value of (x + x^-1).

Which of the following statements is correct?

I. If x = 12, y = –2 and z = –10, then x³ + y³

+ z³ = 720

If (x – 3) is a factor of (x² + 4qx – 2q), then the value of q is: