Question

Why product (-9)X (-5) X (-6) is negative while (-9) X (-5) X (-6)X (-1) is positive?Give reason.

Answer 1

Product (-9)X (-5) X (-6) is negative while (-9) X (-5) X (-6)X (-1) is positive:

1) When you multiply three negative terms as given in the question,

(-9)X (-5) X (-6)

(-ve, -ve) will become +ve

Then =ve will collab with the -ve sign of third one,

(+ve, -ve) will become -ve

So the final answer of (-9)X (-5) X (-6) will give you a negative term as -270

2) Now we have:

(-9) X (-5) X (-6)X (-1)

Here we have an extra value with a negative sign so that will nullify the negative sign of the final answer

as,

(-ve, -ve) will become +ve

So the final answer of (-9) X (-5) X (-6)X (-1) will give you a negative term as -270

Answer 2

Step-by-step explanation:

Because number of negative integers in (-9)×(-5)×(-6) is odd . whereas number of negative integers is (-9)×(-5)×(-6)×(-1) is even .