Question

5×^√16-2×^√-216-^√64

Answer 1

Странно написано, 5 умножить на степень корень из 16, то как? А потом корень из отрицательно числа взять невозможно, т.е. корень из -216

Answer 2

I assume you meant to write the expression as follows:

5×√16 - 2×√(-216) - √64

Simplifying each term:

• √16 = 4 (because 4*4 = 16)
• √(-216) is an imaginary number, because the square root of a negative number is not real. However, we can write √(-1) as "i", so we can rewrite √(-216) as 6i√6 (because 666 = 216)
• √64 = 8

Substituting these values:

5×4 - 2×6i√6 - 8

Simplifying further:

20 - 12i√6 - 8

12 - 12i√6

So the final answer is 12 - 12i√6.