p(1/2) jika p(x) = 4x²-20x+9

p(x) = 4x² - 20x + 9
p(½) = 4(½)² - 20(½) + 9
p(½) = 4(1/4) - 10 + 9
p(½) = 1 - 10 + 9
p(½) = 0

p(x) = 4x² - 20x + 9
p(½) = 4.½² - 20½ + 9
p(½) = 4.¼ - 10 + 9
p(½) = 1 - 10 + 9
p(½) = -9 +9
p(½) = 0

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