Tentukan hp sistem persamaan berikut y=4–x² dan y+2x=5

SPLDK

y = 4 - x²
y + 2x = 5 → y = 5 - 2x

4 - x² = 5 - 2x
-x² + 2x + 4 - 5 = 0
-x² + 2x - 1 = 0
x² - 2x + 1 = 0
(x - 1)(x - 1) = 0
x = 1

y = 5 - 2x
y = 5 - 2
y = 3

HP = {(1, 3)}