App Logo

No.1 PSC Learning App

1M+ Downloads
Which are the roots of the equation x 3 - 12 x 2 + 39x - 28 = 0) if the roots are in arithmetic progression ?

A(1,4,7)

B(2, 2, 7)

C(2.4. 7)

D(1.2, 5)

Answer:

D. (1.2, 5)


Related Questions:

3548x92 + 8x3518 =
Three years ago, Sanju's age was double of Sheeja's. Seven years hence the sum of their ages will be 86 years. The age of Sanju today is :
ഒരു ചടങ്ങിൽ വെച്ച് രണ്ടു വോളിബോൾ ടീമുകളായ 6 പേർ വീതം പരസ്പരം കൈ കൊടുത്താൽ ആകെ എത്ര ഷേക്ക്ഹാൻഡ് ഉണ്ടാകും?
There are 3 pipes in a tank. If first pipe is opened the tank is filled in one hour. If second pipe is opened the tank is filled in seventy five minutes. If third pipe is opened the tank is filled in fifty minutes. If all the three pipes are opened simultaneously, the tank is filled in :

+ = ÷, ÷ = - , - = ×,× = + എന്നിങ്ങനെയായാൽ

48 + 16 ÷ 4 - 2 × 8 =