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Which expression is equivalent to 8x^3 +8 − −2 x^3? 8x^3 +6
Correct answer: B (parsed from the explanation — this source omits an answer key for this item)
Explanation
8 3+8- 3- -2 Choice B is correct. The given expression is equivalent to x x ^ h, or 8 3+8- 3+2 7 3+10 x x . Combining like terms in this expression yields x . 8 3+8 -2 Choice A is incorrect. This expression is equivalent to ^ x h , not 8 3+8 - 3-2 ^ x h ^x h. Choice C is incorrect. This expression is equivalent to 8 3+8 - -2 8 3+8 - 3-2 ^ x h ^ h, not ^ x h ^x h. Choice D is incorrect. This expression 8 3+8 - 3+2 8 3+8 - 3-2 is equivalent to ^ x h ^x h, not ^ x h ^x h.
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