Respuesta :
Expand the brackets and then add like terms together:
31 - 124m + 155n + 410n - 123m + 861
892 - 247m + 565n
31 - 124m + 155n + 410n - 123m + 861
892 - 247m + 565n
Answer:
11L^2‒24LM+55Ln
Step-by-step 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