maths
posted by maths rockzzz on .
If (2x3) is a factor of 2x raised to the power four3xsquare+15x15k,find the value of (3k root of 5 k).

let f(x) = 2x^4  3x^2 + 15x  15k
if (2x3) is a factor, then f(3/2) = 0
2(81/16)  3(9/4) + 15(3/2)  15k = 0
solve for k
then sub that value into 3k  √5k