Question 23
Algebraic ExpressionsSimplify: 2/(2 + x) + 2/(2 − x)
- A.4/(4 − x2)
- B.8/(4 − x2)
- C.4x/(4 − x2)
- D.(8 − 4x)/(4 − x2)
Show the answer and explanation
Answer: B (8/(4 − x2))
Explanation
[2(2 − x) + 2(2 + x)]/[(2 + x)(2 − x)] = 8/(4 − x2).
Simplify: 2/(2 + x) + 2/(2 − x)
Answer: B (8/(4 − x2))
[2(2 − x) + 2(2 + x)]/[(2 + x)(2 − x)] = 8/(4 − x2).