Question

(4y+12) (4y-15) help productos notables​

Answer 1

Respuesta:

$= (4y \times 4y) + (12 - 15) \times 4y + (12 \times - 15) = 16 {y}^{2} - 3 \times 4y - 180 = 16 {y}^{2} - 12y - 180$