Hp dari y=x2+2x+1 dan y-x=3 adalah

y-x = 3
y = x+3

y = x^2+2x+1
x+3 = x^2+2x+1
x^2+2x-x+1-3 = 0
x^2-x-2 = 0
(x-2)(x+1) = 0

x1 = 2
x2 = -1

HP { 2,-1 }

y = x² + 2x + 1
y - x = 3 ---> y = x + 3

y = y
x² + 2x + 1 = x + 3
x² + 2x - x + 1 - 3 = 0
x² + x - 2 = 0
(x + 2)(x - 1) = 0
x = -2 atau x = 1

x = -2
y = x + 3 = -2 + 3 = 1

x = 1
y = 1 + 3 = 4

HP = {(-2,1) , (1,4)}