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=> 3y² - y² + y + 1 = -p
=> 2y² + y + 1 = -p
=> p = -2y² - y - 1
3y²-y² =-1-y-p
2y² = -1-y-p
p=-1-y-2y²
atau
p= -2y²-y-1
semoga bermanfaat