Answer:
4 and -14
Step-by-step explanation: because you subtract 5 from 9 and get 4 and add 9 to -5
a is the best way to find it if there is points involved so keep that in mind
is the right answer and other are wrong
Step-by-step explanation:
l(m-n)+m(m-n)+n(n-l)
lm-ln+m²-mn+n²-nl
lm-2ln+m²+n²-mn