if x minus 2 k is a factor of 5 x cube minus 10x ksquare minus 3 x minus 6 find the value of k
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i x-2k is factor...then 2k is the root of the expression..
So subtitute 2k in place of x in the expression and equate it to zero
i.e 5 × (2k)cube - 10 × (2k)square - 3 ×(2k) -6 = 0
solve for k.
you get three values for k
So subtitute 2k in place of x in the expression and equate it to zero
i.e 5 × (2k)cube - 10 × (2k)square - 3 ×(2k) -6 = 0
solve for k.
you get three values for k
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