(-2x+5) (3+5x) pake jalannya ya!!

(- 2x + 5)(3 + 5x)
= - (2x × 3) - (2x × 5x) + (5 × 3) + (5 × 5x)
= - 6x - 10x² + 15 + 25x
= - 10x² - 6x + 25x + 15
= - 10x² + 19x + 15

Maaf Kalau Salah

(-2x+5) (3+5x)
kali silang
-6x-10x^{2} +15+25x
10x^{2} + 19x + 15.
^ = pangkat