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Phantasy [73]
3 years ago
5

Evaluate the given expression if a​ = 2 and ​b​ = -4 a2-b3

Mathematics
1 answer:
IceJOKER [234]3 years ago
5 0

Answer:

31

Step-by-step explanation:

{a}^{2}  -  {b}^{3}  \\  \\  =  {(2)}^{2}  -  {( - 3)}^{3}  \\  \\  = 4 - ( - 27) \\  \\  = 4 + 27 \\  \\  = 31

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