Question 6
SurdsSimplify 5√18 − 3√72 + 4√50
- A.17√4
- B.4√17
- C.17√2
- D.12√4
Show the answer and explanation
Answer: C (17√2)
Explanation
5√18 = 15√2, 3√72 = 18√2 and 4√50 = 20√2. So the total is (15 − 18 + 20)√2 = 17√2.
Simplify 5√18 − 3√72 + 4√50
Answer: C (17√2)
5√18 = 15√2, 3√72 = 18√2 and 4√50 = 20√2. So the total is (15 − 18 + 20)√2 = 17√2.