2 pangkat x^2 +3x+4 = 4 pangkat -x-1

Bab Eksponensial
Matematika SMP Kelas IX

^ = pangkat


2^(x² + 3x + 4) = 4^(-x - 1)
2^(x² + 3x + 4) = 2^(2 (-x - 1))
x² + 3x + 4 = -2x - 2
x² + 3x + 4 + 2x + 2 = 0
x² + 5x + 6 = 0
(x + 2) (x + 3) = 0
x + 2 = 0
x = -2

x + 3 = 0
x = -3

HP = { -3, -2 }