potato3999
30.09.2019 •
Mathematics
Simplify the following expression by combining like terms.
2x + 7x2 - 6x +9x2
2x + 7x2 - 6x + 9x2 =
(type la simplified expression.)
enter your answer in the answer box and then click check answer.
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Ответ:
51,53,55,57
Step-by-step explanation:
By the triangle inequality the sum of the lengths of any two sides is greater than or equal to the third side. In our case, 3 + 54 = 57, so the third side must be less than or equal to 57.