Question

√81a-√49a+√16a упростите выражения

Answer 1

Ответ:

9√а-7√а+4√а=6√а

Объяснение:

!!!!!!!

Answer 2

To simplify the expression √81a - √49a + √16a, we can first simplify each square root term separately and then combine like terms:

√81a = √(9^2 * a) = 9√a √49a = √(7^2 * a) = 7√a √16a = √(4^2 * a) = 4√a

Now, the simplified expression becomes:

9√a - 7√a + 4√a

Since all the terms have the same square root (√a), we can combine them:

(9 - 7 + 4)√a

Now, perform the arithmetic inside the parentheses:

6√a

So, the simplified expression is 6√a.