Question

IV. Simplify the following by combining the like terms.
(a) 3xyz - 3xyʻz + x y2 + 7xyz
(b) x + 3xºy + 3x2 y - 3xºy - 3xy + y - 3x²y
(c) p q r + pq r + 3pPqre - 9ppqr2​

Answer 1

Answer:

I know first two answers dude last one I m not able to understand sorry

a)3xyz-3xyz+7xyz+xy²

=7xyz+xy²(because +3xyz&-3xyz will be cancelled because of different signs)

b)x+3x°y-3x°y+3x²y-3x²y-3xy+y

here also same as the values having different signs will be cancelled,so the answer is,x-3xy+y.thats all dude

hope this helps u dude