Question

Which pairs of expressions below are equivalent? A9m+4m13m2 B2(3m−4n)6m−4n C7(2m−3n)14m−21n D5m+5n+5m+5n5(m+n)

Answer 1

7(2m−3n)14m−21n

Explanation:

The following pairs are equivalent

7(2m - 3n)

14m - 21n

If you solve 7(2m - 3n)

So

7(2m) - 7(3n)

14m - 21n

So according to the given options, the option c is correct as this pairs is to be considered as equivalent