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tangare [24]
3 years ago
9

If a+ b = 6 and ab = 2 find a^3 + b^3

Mathematics
1 answer:
irga5000 [103]3 years ago
5 0

Answer: 180

Step-by-step explanation:

This is just testing if you know the sum of cubes formula:

a^3 + b^3 = (a+b)(a^2 - ab + b^2) = (a+b)((a+b)^2 - 3ab)

Plugging in the respective values, you get

a^3 + b^3 = (6)(6^2 - 3(2)) = \boxed{180}

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