The polynomial -6x^3-55x^2+kx-16 has factors x+8 and 3x+2. Determine the value of k.?
回答 (2)
2019-10-28 8:31 am
Since x+8 is a factor, then x=-8 is a root.
So, let x=-8 in -6x^3-55x^2+kx-16 = 0 and solve for k. Done!
Note that you don't need the other info of 3x+2.
Done!
So, let x=-8 in -6x^3-55x^2+kx-16 = 0 and solve for k. Done!
Note that you don't need the other info of 3x+2.
Done!
2019-10-29 3:51 am
x=-8 and k=-58
So
-6x³-55x²-58x-16=0
So
-6x³-55x²-58x-16=0
收錄日期: 2021-04-24 07:40:09
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