Question

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Answer 1

a² + b . c

quando,

a = 15

b = 10

c = 8

15² + 10 . 8 = 225 + 80 = 305

3 . a + a³

quando,

a = (- 3)

3 . (- 3) + (- 3)³ = - 9 - 27 = - 36