Question

Sendo a = 8.b = 4ec=1 calcule:
1. a (b - c)=
11. 30.b(a + c) =
III. (a + b)(a - c) =
a) 1. 24: 11.864 e III. 84
b) 1. 24: 11. 14 e III.
C) 1.244; 11.864 e Ill. 845
d) 1.24:11. 865 e Ill. 84
e) 1.25:11. 865 e 111.84​

Answer 1

Resposta:

1) 8(4-1)

32-8

24

11) 30.4(8+1)

30.32+4

960+4

964

111) (8+4)(8-1)

64-8+32-4

84

Letra A