Question

The product if(-9) x (-8) X (-2) (-1) is positive whereas the product of (9)*(-4)
negative. why? which property you used here​

Answer 1

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Here the two propeties are used:-

▪︎ Product of two negative numbers is positive.

=》 (-) × (-) = +.

▪︎ Product of one negative and one positive number is negative.

=》 (-) × (+) = (-).

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