Answer:
= -13 / 20
Step-by-step explanation:
16,17,18,18,19,19,21,21,21,22,22,22,24,25,28,29,30
Answer: x = 1
x =(-3-√-15)/4=(-3-i√ 15 )/4= -0.7500-0.9682i
x =(-3+√-15)/4=(-3+i√ 15 )/4= -0.7500+0.9682i
x2 = 0