9-7= 2 and ±2-±8=6 here are the answers to one of the questions you need help whith
Answer:

Step-by-step explanation:
Answer:
a= 4
b= -10
c= -7
d= -1
Step-by-step explanation:
12 is your heckling my recking
Answer:
x¹/²
Step-by-step explanation:
Taking the square root of a number is the same as taking it to the power of one half.