Question

Please help! I don't know how I'd write the final anwesr.

Answer 1

Answer:

$-5*4*a = -20*a$ is the correct answer

Step-by-step explanation:

Square root of 16 = 4, and the square root of a^2 can be -a or +a, it says that a<0. so the answer is -20*a.

Hope this helps!