5y(3-4y) 4x(3+5y) ????

5y(3-4y) 4x(3+5y)
= (15y-20y²) (12x+20xy)
= -5y×32x²y
= -160x²y²
= -160(xy)²

Thanks

Jawab:

Penjelasan dengan langkah-langkah:

5y(3-4y)+4x(3+5y)

15y-20y²+12x+20xy

12x+15y-20y²+20xy