add 5k2 + 6k2 -4k3 +9k +5 and 3k4 - 8k3 + 2k2- 12 in coloum method
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Answer:
5k²+6k²-4k³+9k+5=11k²-4k³+9k+5 +0
3k⁴-8k³+2k²-12. =2k²-8k³+0 -12+3k⁴
=13k²-12k³+9k-7+3k⁴
=3k⁴-12k³+13k²+9k-7
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Answer:
to the distance of the image in the mirror
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