Question

Simplify −√16⁢𝑐^4⁢𝑑^2. Order the variables alphabetically.

Answer 1

Start with −√(16 c^4 d^2) = −√16·√(c^4)·√(d^2) = −4·c^2·|d|.
Since variables alphabetically: −4 c^2 |d|.