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Factorisation by Common Factors

Factorise: ...

Question

Factorise: $13 m^{2} + 156 n^{2}$

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Solution

Since in the expression $13 m^{2} + 156 n^{2}$ , $13$ is the common term, therefore, can be factorised as follows:

$13 m^{2} + 156 n^{2} = 13 (m^{2} + 12 n^{2})$

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