Question

4- Calcule:
a) (+8). (+5) =
b) (-8). (-5) =
c) (+8).(-5) =
d) (-8). (+5) = ​

Answer 1

꧁Hello, how are you?꧂

$a) \: \: ( + 8) \times ( + 5) \\ 8 \times 5 \\ 40$

$b) \: \: ( - 8) \times ( - 5) \\ 8 \times 5 \\ 40$

$c) \: \: ( + 8) \times ( - 5) \\ 8 \times ( - 5) \\ - (8 \times 5) \\ - 40$

$d) \: \: ( - 8) \times ( + 5) \\ ( - 8) \times 5 \\ - (8 \times 5) \\ - 40$

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Signed: Lohany Queen of hell 彡★

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