Tolong bantu jawab kak buat besok solanya​

Penjelasan dengan langkah-langkah:

^ artinya pangkat

a] 3^(x² – 3x – 4) ≤ 3^(x + 8)

x² – 3x – 4 ≤ x + 8

x² – 3x – x – 4 – 8 ≤ 0

x² – 4x – 12 ≤ 0

(x – 6) . (x + 2) ≤ 0

x – 6 ≤ 0

x ≤ 6

x + 2 ≥ 0

x ≥ -2

-2 ≤ x

HP = { x | -2 ≤ x ≤ 6, x ε bilangan real }

b] 5^(x² – 3x – 2) < 25^(x + 6)

5^(x² – 3x – 2) < (5²)^(x + 6)

x² – 3x – 2 < 2x + 12

x² – 3x – 2x – 2 – 12 < 0

x² – 5x – 14 < 0

(x – 7) . (x + 2) < 0

x – 7 < 0

x < 7

x + 2 > 0

x > -2

-2 < x

HP = { x | -2 < x < 7, x ε bilangan real }

Detail Jawaban

Kelas 10

Mapel 2 – Matematika

Bab 1.1 – Bentuk Akar, Eksponen dan Logaritma

Kode Kategorisasi : 10.2.1.1