p=-3 r=2q=-1 the expression is 2p-5p-8+3r find the valuable expression of this
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Answer:Therefore, The value of p³ + q³+r³ + 3pqr is 36
Step-by-step explanation: p = -2
q = - 1
r = 3 .
Now,
p³ + q³ + r³ + 3 p q r
= ( -2)³ + ( - 1 )³ + ( 3)³ + 3 ( -2 ) ( -1 ) ( 3 )
= -8 + ( -1 ) + 27 + 3 ( 6 )
= -8 - 1 + 27 + 18
= 27 + 18 - 9
= 27 + 9
= 36 .
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mark brain list answer
2p - 5p -8 +3r
2×3-5×3-8+3×2
6-15-8+6
12-15-8
-3-8
-11 is the answer
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