Question

Stiind ca y=9, determinati produsul p=(y+6) x (2y-4) x (3y+3)

Answer 1

p = ( y + 6 ) x ( 2 y - 4 )  x ( 3 y + 3 )

p = ( 9 + 6 ) x ( 2 × 9 - 4 ) x ( 3 × 9 + 3 ) → am inlocuit pe y cu 9

p = 15 x 14 x 30

p = 210 x 30

p = 6 300