5m + 15n 5m = 5 times; m 15n = 3 times; 5 times; n Here, 5 is the common factor of the given terms. Hence, 5m + 15n = 5 (m + 3 times; n) = 5 (m + 3n ...

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Standard VII

Mathematics

Finding the Value of an Expression

Factorise:2 5...

Question

Factorise:

(2) 5m + 15n

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Solution

5m + 15n
5m = 5 × m
15n = 3 × 5 × n
Here, 5 is the common factor of the given terms.
Hence, 5m + 15n = 5 (m + 3 × n)
= 5 (m + 3n)

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Factorise: (2) 5m + 15n

5m + 15n 5m = 5 × m 15n = 3 × 5 × n Here, 5 is the common factor of the given terms. Hence, 5m + 15n = 5 (m + 3 × n) = 5 (m + 3n)

Factorise:

(2) 5m + 15n

5m + 15n
5m = 5 × m
15n = 3 × 5 × n
Here, 5 is the common factor of the given terms.
Hence, 5m + 15n = 5 (m + 3 × n)
= 5 (m + 3n)