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√(3p + 2)² / 4 = √(1/2 p - 2)² .... kedua ruas pangkatkan 2
(3p + 2)² / 16 = (1/2 p - 2)²
(3p + 2)² = 16 (1/2 p - 2)²
9p² + 12p + 4 = 16 (1/4 p² - 2p + 4)
9p² + 12p + 4 = 4p² - 32p + 64
9p² - 4p² + 12p + 32p + 4 - 64 = 0
5p² + 44p - 60 = 0
(5p - 6) (p + 10) = 0
5p - 6 = 0 atau p + 10 = 0
5p = 6 atau p = - 10
p = 6/5