Question

Using suitable identity, find the product of (ii) Subtract 3l (4m-l+2n ) from 4l (3m+2n -2l)​

Answer 1

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Answer:

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

Answer 2

Answer:

25ln + 5l2

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