Question

subtract (3p-2q+r) from (9p-q) and add the result to (p²-7p+q²-r) I will mark as brainliest.
please answer fast....​

Answer 1

Answer:

Step-by-step explanation:

=(9p-q)-(3p-2q+r)

=9p-q-3p+2q-r

=6p+q-r

now doing addition,

=(p²-7p+q²-r)+(6p+q-r)

=p²-7p+q²-r+6p+q-r

=p²-p+q²+q-2r

=p(p-1)+q(q+1)-2r.

hope this helps u