Question

substract the sum of (3p-4q-7r2) and ( 2p+3q-4r2) from the sum of (9p+2q-3r2 ) and (-3p+q+4r2)
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Answer 1

Answer:

First sum of 2p-3q-3r , 4p-q-r and 3p-2q-3r

then

sum of 3p-2q+2r , 5p+3q-2r and -4p+2q-3r then

subtract..