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Grade 128 grade maths

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

Profile image of Pawan Prajapati
5 Years agoGrade 12
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1 Answer

Profile image of Harshit Singh
5 Years 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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