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If a+b = 8, b+c = -3, and a+c = -5, what is the value of the product abc?

 Jun 17, 2021

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 #1
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Add them and divide by 2 to get a + b + c = 0. This means a + b = -c. Then, -c = 8, or c = -8. From this, a = 3, b = 5. Then multiply all 3 to get -120

 Jun 17, 2021
 #1
avatar
+1
Best Answer

Add them and divide by 2 to get a + b + c = 0. This means a + b = -c. Then, -c = 8, or c = -8. From this, a = 3, b = 5. Then multiply all 3 to get -120

Guest Jun 17, 2021

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