Q. 1 A3.7( 3 Votes )

Choose the correct answer for the following:

The factors of 3a + 21ab are _______
A. ab, (3 + 21)

B. 3,(a + 7b)

C. 3a, (1 + 7b)

D. 3ab, (a + b)

Answer :

Given 3a + 21ab can be written as 3× a× (1 + 7b)

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