Answer: k = {8, -8}
<u>Step-by-step explanation:</u>
In order for a quadratic equation to have exactly one solution, the discriminant must equal zero. → b² - 4ac = 0
4x² + kx + 4 = 0
↓ ↓ ↓
a=4 b=k c=4
b² - 4ac = 0
k² - 4(4)(4) = 0
k² = 64
k = √64
k = ± 8

Collecting like terms,

Since the signs change when its position changes.

Answer:
13.4±2.132(1.02/5)
Step-by-step explanation:
Khan Academy
<em>Refer to the attachments!!</em><em>~</em>
Answer:
2
Step-by-step explanation: