Question

I apologize for the messy photo but please help me with this, I’m really confused! Thank you so so so much.

Answer 1

Answer: (-2)²=4

-2²=-4

square root of 4 is 2

1 over the square root of 8 is -2

1 aquare root of -8 is 2,-2

Step-by-step explanation:plug them into calculator

Answer 2

1)+4

2)-4

3) 2

4) i don't know

5)