Originally Posted by

**THSKluv** Solve the equation 4xcubed + 32xsquared + 79x + 60 = 0 given that one root is equal to the sum of the other two

Here is my working out so far

Let the roots be alpha, beta and gamma

alpha + beta = gamma

AND you know that

alpha + beta + gamma = (-b/a) = (-8)

alpha x beta x gamma = (-d/a) = (-15)

alphabeta + alphagamma + betagamma = (79/4)

i would realli like some help on how to proceed from here ?

i just need to find wat alpha, beta and gamma are and am having alot of difficulty ><"" thankyouu for any help !! =D