Ile wynosi wartość liczbowa wyrażenia g(7g-3g^2+8)-3(-g^3+2g^2+2g-5) dla g= -2?
-2(7*(-2) - 3(-2) + 8) -3(-2 + 2(-2) + 2(-2) - 5) =
-2(-14 - 6 +8) + 24 - 24 +12 - 5 =
28 + 12 - 16 +12 - 5 =
52 - 21 = 31
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-2(7*(-2) - 3(-2) + 8) -3(-2 + 2(-2) + 2(-2) - 5) =
-2(-14 - 6 +8) + 24 - 24 +12 - 5 =
28 + 12 - 16 +12 - 5 =
52 - 21 = 31