Question

$why \: product( - 20)\times ( - 2) \times \\ ( - 1)is \: negative \:while(20) \times \\ (2) \times (1)is \: positive \: give \: reason$
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Answer 1

-20×-2×-1 = -40

20×2×1 = 40

Reason is the below function.

$\red{+ × - = -}$

$\red{- ×+ = -}$

$\red{+ × + = +}$

$\red{- × - = +}$