3 years ago

17. If x is a real number such that x3 = 729,

Mathematics

1 answer:

Nat2105 [25]3 years ago

3 0

Answer:

C. 90

Step-by-step explanation:

If x^3 = 729, x = 9.

Then, plug that into x^2 + x

9 ^ 2 + 9 = 81 + 9 = 90

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