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Factorise the following expressions 20l^2m + 30alm Factorise the following expressions 20l^2m + 30alm

Factorise the following expressions
20l^2m + 30alm
Factorise the following expressions
20l^2m + 30alm

Grade:12

1 Answers

Harshit Singh
askIITians Faculty 5964 Points
7 months ago
Dear Student

20l^2m = 2 x 2 x 5 × l × l × m
30alm= 2 x 3 x 5 × a × l × m
The commom factors are 2, 5 l, and m
20l^2m + 30alm = (2 x 2 x 5 × l × l × m ) + ( 2 x 3 x 5× a × l × m )
= ( 2 x 5 x l x m ) [ 2 x l + 3 x a ]
= 10lm ( 2l + 3a)

Thanks

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