X 7 8 x 3 is equal to 17.6 5 x 2 July 8, 2019 16 32 64 128 5 x 7 = 35 13.3. 1) (x - 7)(x + 8) 3) (a + 6)(4 - a) 5) (10 - c)(9 - c) (x 8) и ((x 7) или (x 7))