invers dari h(x)=x2+6x+12

Fungsi
• Invers

Hy Serly ... :)

h(x) = y = x² + 6x + 12

y = (x + 3)² + 3
(x + 3)² = y - 3
x + 3 = ± √(y - 3)
x = -3 ± √(y - 3)

h^-1 (x) = -3 ± √(x - 3) ✔

h(x) = x² + 6x + 12
y = x² + 6x + 12
y - 12 = (x + 3)² - 9
y - 12 + 9 = (x + 3)²
y - 3 = (x + 3)²
x = (+-)√(y - 3) - 3

utk x ≥ -3, maka
h⁻¹(x) = √(x - 3) - 3

utk x < -3
h⁻¹(x) = -√(x - 3) - 3