Question

Add the following: 3l(l – 4 m + 5 n) and 4l( 10 n – 3 m + 2l) ​

Answer 1

Expand the brackets and then add like terms together:
31 - 124m + 155n + 410n - 123m + 861
892 - 247m + 565n

Answer 2

11L^2‒24LM+55Ln

Explanation:

first let's take L instead of l

3L(L‒4m+5n)+4L(10n‒3m+2L)

3L^2‒12LM+15Ln+40Ln‒12Lm+8L^2

3L^2+8L^2‒12LM‒12LM+15Ln+40Ln

11L^2‒24LM+55Ln

i think it is easy to understand&i hope it helps you