DumbPerson DumbPerson

25-11-2017
Mathematics

contestada

Which multiplication equation is false? There is only 1 answer.
Each equation is typed exactly how it is shown to me.

A: (-a) x (-1) = (-a)
B: (-
C: (-a) x b = b x (-
D: x 0 = 0
E: (- a) x 1 = (-

Please explain why one is false.

Respuesta :

Plasmataco Plasmataco

25-11-2017

A)
A negative times a negative should be positive.
-1*(-a) should be a, not -a

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