3l ( l-4m + 5n ) from 4l ( 10n - 3m)
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Answer:25ln-3l^2
EXPLANATION : Simplify: 4l(10n-3m)
=40ln-12lm
Simplify:3l(l-4m+5n)
=3l^2-12lm+15ln
Subtraction:
40ln-12lm -(3l^2-12lm+15ln)
40ln-12lm-3l^2+12lm-15n
=25ln-3l^2
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