f(x) = 3x² - 4
f(2)= 3 * 2² - 4 = 12 - 4 = 8
f(- 3) = 3 * (- 3)² - 4 = 3 * 9 - 4 = 27 - 4 = 23
f(0) = 3 * 0² - 4 = - 4
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f(x) = 3x² - 4
f(2)= 3 * 2² - 4 = 12 - 4 = 8
f(- 3) = 3 * (- 3)² - 4 = 3 * 9 - 4 = 27 - 4 = 23
f(0) = 3 * 0² - 4 = - 4