Question 141267
4 times t to the 5th power minus 12 times t to the 3rd power plus 8 times t to the second power.
t^2(4t^3 - 12t + 8)
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The next one is 12 times w to the 3rd power plus 8 times w to the second power plus 20 times w.
4w(3w^2 + 2w + 5)
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2 times k to the fourth power plus 4 times k to the 3rd power minus 6 times k minus 8
2(6k^4 + 2k^3 - 3k - 4)

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4t^5-12t^3+bt^3 
= 4t^5 -(12-b)t^3
= t^3 [ 4t^2-12+b]

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12w'3 + 8w'2 + 20w 
4w(3w^2 + 2w + 5)

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2k'4+4k'3-6k-8
2(k^4 +2k^3 - 3k -4)
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Cheers,
Stan H.