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Factorization — MATHS STD 8 — Question

Gujarat BoardEnglish MediumSTD 8MATHSFactorization2 Marks
Question
Factorise the expression: $20l^2m + 30alm$
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Answer

$20l^2m + 30alm = 2 \times 2 \times 5 \times l \times l \times m + 2 \times 3 \times 5 \times a \times l \times m$
Taking common factors from each term,
$= 2 \times 5 \times l \times m(2 \times l + 3 \times a)$
$= 10lm(2l + 3a)$

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