If the numbers 4, 5 and 6 are each used exactly once to replace the letters in the expression A ( B − C ), what is the least possible result?

The least possible result is -10.

Step-by-step explanation:

Given the numbers 4, 5 and 6 are to be chosen one of the letters A, B or C.

First of all,

Let A = 4, B = 5 and C = 6

Let A = 4, B = 6 and C = 5

Let A = 5, B =4 and C = 6

Let A = 5, B = 6 and C = 4

Let A = 6, B = 4 and C = 5

Let A = 6, B = 5 and C = 4

Summarizing the above values in the form of a table:

So, the least possible result is -10.

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step-by-step explanation: