Question 22
Algebraic ExpressionsSimplify (2 − 18m2)/(1 + 3m)
- A.2(1 + 3m)
- B.2(1 + 3m2)
- C.2(1 − 3m)
- D.2(1 − 3m2).
Show the answer and explanation
Answer: C (2(1 − 3m))
Explanation
2 − 18m2 = 2(1 − 9m2) = 2(1 − 3m)(1 + 3m); cancel (1 + 3m) to get 2(1 − 3m).