Question

Simplify: (l + m) (n - p) + (l - m) (n + p) + 3 (ln + mp)

1 point

5 ln + mp

ln -- 5 mp

5 lp + mn

lp -- 5mn

​

Answer 1

Answer:

5ln + mp

Step-by-step explanation:

(l + m) (n - p) + (l - m) (n + p) + 3 (ln + mp)

= l(n-p)+m(n-p) +l(n+p)-m(n+p) +3(ln+mp)

= ln -lp +mn -mp + ln + lp - mn - mp  +3ln + 3mp

= ln + ln +3ln -lp + lp +mn -mn -mp - mp +3mp

= 5ln + mp

Answer 2

Simplify: (l + m) (n - p) + (l - m) (n + p) + 3 (ln + mp)

5 ln + mp $\huge{\bf\green{✓}}$

ln -- 5 mp

5 lp + mn

lp -- 5mn