Question

Please please please please help

Answer 1

is letter A

$- 2 \sqrt{7}$

Answer 2

Answer:

A. -2$\sqrt{7}$

Step-by-step explanation:

3 - 5 = -2

The $\sqrt{7}$ is just like an x variable at this point because they are both the same. If it was $\sqrt{7}$ and $\sqrt{14}$ for example, then you wouldn't be able to subtract them so easily. Kinda like how you can't subtract 3x-5y because they're two different variables.