Answer:
a) square root of -8
Step-by-step explanation:
a) x^2 -4 = -12
x^2 = -12+4
x^2 = -8
x = square root of -8
method used: idk what to call it.. simplification?
I didn't answer all of them but hopefully someone else answers the others and doesn't just type 'answer' in hopes of getting brainliest lol-
also I don't think this is wrong but if it is then apologies.
