Q: For real numbers a,b show the following by stating the properties used:

I) (-a)b = a(-b) = -ab

ii) (-a)(-b) = ab

- **Mathematics**
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- - **Question about Proof of Real Number..**
(*https://www.askmehelpdesk.com/showthread.php?t=832901*)

Jun 21, 2017, 11:54 AM

syed4all
Question about Proof of Real Number..

Q: For real numbers a,b show the following by stating the properties used:

I) (-a)b = a(-b) = -ab

ii) (-a)(-b) = ab

Jun 21, 2017, 01:15 PM

smoothy
This is YOUR homework... show us what YOU think the answer is and why. Site rules require it.

Jun 21, 2017, 01:39 PM

Rebecca131
These are pretty tricky.

I) (-a)b = a(-b) = -ab

Attachment 48806

ii) (-a)(-b) = ab

Attachment 48807

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