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What is the simplified standard form #3x ^ { 2} + 4x ^ { 3} - 2x + 5- 3x ^ { 2} - 7x ^ { 2} + 12#?

Answer 1

#+4x^3-7x^2-2x+17#

we cancel #3x^2# and add #5+12# so we get #4x^3-7x^2-2x+17#

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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