Tolong jawab aku gatau caranyapliss

(x+2)(x²+5x-3) –> distributif
= x³ + 5x² – 3x + 2x² + 10x – 6
= x³ + 7x² + 7x – 6

(x + 2) (x² + 5x – 3)

tanda " . " = dikali

= (x . x²) + (x . 5x) + (x . -3) + (2 . x²) + (2 . 5x) + (2 . -3)
= x³ + 5x² + (-3x) + 2x² + 10x + (-6)
= x³ + 5x² + 2x² + 10x – 3x – 6
= x³ + 7x² + 7x – 6 → Jawaban