Tlong kk dgn pnjlsan cranyayg soal a,b,dan c​

Jawab:

Penjelasan dengan langkah-langkah:

f (x) = x³ + x² – 4

g (x) = x³ – 2x² + x + 2

a] f (x) + g (x)

= x³ + x² – 4 + x³ – 2x² + x + 2

= x³ + x³ + x² – 2x² + x – 4 + 2

= x³ + x³ – x² + x – 2

b] f(x) – g(x)

= (x³ + x² – 4) – (x³ – 2x² + x + 2)

= x³ – x³ + x² + 2x² – 4 – x – 2

= 3x² – x – 6

c] f(x) . g(x)

= (x³ + x² – 4) . (x³ – 2x² + x + 2)

= x⁶ – 2x⁵ + x⁴ + 2x³ + x⁵ – 2x⁴ + x² – 4x³ + 8x² – 4x – 8

= x⁶ – x⁵ – x⁴ – 2x³ + 9x² – 4x – 8

Detail Jawaban

Kelas  10

Mapel 2 – Matematika

Bab  3 – Fungsi

Kode Kategorisasi :  10.2.3