The pryamougolnikaravna of 8 cm is long. And It on "and "the cm is more than its width. Write down the area of this rectangle in the form of expression.

73
1) 8 cm - length, (8-a) of cm - width 2) the Area is equal width to increase by length, i.e. 8 * (8-a) = 64 - 8aploshchad is equal; S=(8+a)*8
139
Answer add