Souligne ci-dessous les expressions qui sont des produits et entoure leurs facteurs.
A = 5 × x – 4
B = 5 × (a – 4)
C = 4y × (– 3y)
D = 5(2x + 6)
E = (– 2 + x) × 5x
F = 3u + 2(u – 5)
G = (3x + 2)(x – 5)
H = 3v + 2 × v – 5

Acompany manufactures large valves, packed in boxes. a shipment consists of 1500 valves packed in 75 boxes. each box has the outer dimensions 1.2 x 0.8 x 1.6 m and the inner dimensions 1.19 x 0.79 x 1.59 m. the boxes are loaded on a vehicle (truck + trailer). the available capacity in the vehicle combination is 140 m3. each valve has a volume of 0.06 m3. - calculate the load factor on the box level (%). - calculate the load factor on the vehicle level (%). - calculate the overall load factor (%).