Subtract 3l(l-5m+6n) from4l(10n-4m+20)
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Answer:
Answer is 25ln + 5l^2.....
Subtract 3l(l−4m+5n) from 4l(10n−3m+2l)
=4l(10n−3m+2l)−3l(l−4m+5n)
=(40ln−12lm+8l 2 )−(3l 2 −12lm+15ln)
=40ln−12lm+8l 2 −3l 2 +12lm−15ln
=25ln+5l 2
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