SOLUTION: Can you help me with this? Thanks :) a, b, c are positive real numbers that satisfy the equation below: ab + c^2 = 18 a^2 + b^2 = 12 What is the value of a x b x c? a. 6

Question 1006383: Can you help me with this? Thanks :)
a, b, c are positive real numbers that satisfy the equation below:
ab + c^2 = 18
a^2 + b^2 = 12
What is the value of a x b x c?
a. 6
b. 8
c. 10
d. 12
e. 24
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
Answer is not unique. Note that we can pick a, b, such that a^2 + b^2 = 12, and as long as ab < 18, we can determine c.

For example:

which already doesn't match any answer choice.
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