x⁴ + 2x² - 3x + 1
untuk x = 2
2⁴ + 2(2)² - 3(2) + 1
= 16 + 8 - 6 + 1
= 19
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Verified answer
x⁴ + 2x² - 3x + 1
untuk x = 2
2⁴ + 2(2)² - 3(2) + 1
= 16 + 8 - 6 + 1
= 19