if P equal to minus 2 q equal to -1 and are equal to 3 find the value of P Cube + Q Cube + R Cube + 3 pqr
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2
Answer:
54
Step-by-step explanation:
P= -2
q= -1
r= 3
Cube of (p)= -8
Cube of q(-1)= -1
Cube of r(3)= 27
-8+(-1)+27+3×(-2)(-1)×3
9+27+18
=54,ans.
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