( 3 x + 5 ) ( x -10 )

Jawabannya:3xkuadrat-30x+5x-50
Karena:
3x x x=3x kuadrat
3x x-10=-30x
5 x x=5x
5×-10=-50

3× * × = 3ײ

5 * × = 5×

3× * -10 = -30×

5 * -10 = -50

Jadi 3ײ + 5× - 30× - 50

Totalnya 3×-25×-50

Maaf kalau salah ya