Question

9. Which of the following is the common factor of 21 x2y and 35 xy2
(a) 7
(b) xy
(c)7xy
(d) none of these​

Answer 1

Answer:

Option (c) is correct

Step-by-step explanation:

Given :- 21x²y and 35xy²

To find :- The common factors of given

expression

Solution :-

Factors of 21x²y are :-

21x²y = 3 × 7 × x × x × y

Factors of 35xy² are :-

35xy² = 5 × 7 × x × y × y

Common factors are :-

= 7 × x × y

= 7xy

Therefore, the common factors is 7xy

Hence, option (c) is the correct answer ✓✓