Question 23
Quadratic EquationsFind the value of m which makes x2 + 8x + m a perfect square.
- A.2
- B.4
- C.8
- D.12
- E.16
Show the answer and explanation
Answer: E (16)
Explanation
m must be (half of 8)2 = 16, giving (x + 4)2.
Find the value of m which makes x2 + 8x + m a perfect square.
Answer: E (16)
m must be (half of 8)2 = 16, giving (x + 4)2.