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Verified answer
X + y - 4 = 0y = 4 - x
y² = (4 - x)²
y² = (16 - 8x + x²)
subtitusikan y² ke pers. x² + y² - 10 = 0
x² + y² - 10 = 0
x² + (16 - 8x + x²) - 10 = 0
x² + 16 - 8x + x² - 10 = 0
2x² - 8x + 6 = 0
x² - 4x + 3 = 0
(x - 3)(x - 1) = 0
x = 3 atau x = 1
jika x = 1 maka nilai y adalah
x + y = 4
1 + y = 4
y = 3
jika x = 3 maka nilai y adalah
x + y = 4
3 + y = 4
y = 1
Jadi HP : {(x,y) | (1,3) atau (3,1)}