Question 8
SurdsSimplify: √5(√147 − √12)/√15
- A.1/9
- B.9
- C.5
- D.1/5
Show the answer and explanation
Answer: C (5)
Explanation
√147 = 7√3 and √12 = 2√3, so the top is √5 × 5√3 = 5√15. Dividing by √15 gives 5.
Simplify: √5(√147 − √12)/√15
Answer: C (5)
√147 = 7√3 and √12 = 2√3, so the top is √5 × 5√3 = 5√15. Dividing by √15 gives 5.