432а-321 а-100а-10а при а=7645

To find the value of the expression 432a - 321a - 100a - 10a when a = 7645, we can substitute the value of a into the expression and simplify.

Let's calculate step by step:

432a - 321a - 100a - 10a = (432 - 321 - 100 - 10) * a (grouping like terms) = 1 * a (simplifying the arithmetic inside the parentheses) = a

Therefore, when a = 7645, the value of the expression 432a - 321a - 100a - 10a is 7645.