Which of the following is the factorised form of 20l2m+30alm?
Given, the expression is 20l2m+30alm.
The given expression can be factorised as follows:-
20l2m+30alm
=(2×2×5×l×l×m)+(2×3×5×a×l×m)
Taking out the common factors from both the terms, we get
=(2×5×l×m)[(2×l)+(3×a)]
=10lm(2l+3a)