Question 737925: Please check my answer, I am not sure which is correct
Problem: (2x^4-3x^2+8x-1)-(x^4+3x^3+x+4)
answer: x^4-3x^3-3x^2+7x-5 OR x^4-3x^2+7x-5-3x^3
(x^4)+(-3x^2)+(-3x^3)+(7x)+(-5)=x^4-3x^3-3x^2+7x-5
In what order do results have to be? Which order is correct because I have been it the other way as well.
Thanks
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! Please check my answer, I am not sure which is correct
Problem: (2x^4-3x^2+8x-1)-(x^4+3x^3+x+4)
answer: x^4-3x^3-3x^2+7x-5 OR x^4-3x^2+7x-5-3x^3
The answers are the same, just different order.
Descending order is customary, and expected.
x^4-3x^3-3x^2+7x-5
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(x^4)+(-3x^2)+(-3x^3)+(7x)+(-5)=x^4-3x^3-3x^2+7x-5
In what order do results have to be? Which order is correct because I have been it the other way as well.
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Any order is correct, and they're all the same answer. Descending order makes it easier to do and to check.
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