f(x) = -2x + 1 x < 3
= 2x² - 3 x ≥ 3
f(-1) = {-1 < 3} = -2*(-1) + 1 = 2 + 1 = 3
f(f(-1)) = f(3) = { 3 ≥ 3} = 2*3² - 3 = 18 - 3 = 15
ответ 15
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f(x) = -2x + 1 x < 3
= 2x² - 3 x ≥ 3
f(-1) = {-1 < 3} = -2*(-1) + 1 = 2 + 1 = 3
f(f(-1)) = f(3) = { 3 ≥ 3} = 2*3² - 3 = 18 - 3 = 15
ответ 15