Answer:
Step-by-step explanation:
x² + 4 = -6x
x² + 6x + 4 = 0
quadratic formula
x = [-6±√(6²-4·1·4)]/[2·1] = [-6±√20]/2 = [-6±2√5]/2 = -3±√5
16
range= highest value - lowest value
n=15/8
-259
