Question 20
Algebraic ExpressionsIf 2x2 + Kx − 14 = (x + 2)(2x − 7), find the value of K.
- A.−3
- B.5
- C.9
- D.11
Show the answer and explanation
Answer: A (−3)
Explanation
(x + 2)(2x − 7) = 2x2 − 3x − 14, so K = −3.
If 2x2 + Kx − 14 = (x + 2)(2x − 7), find the value of K.
Answer: A (−3)
(x + 2)(2x − 7) = 2x2 − 3x − 14, so K = −3.