Posted by **TiffanyJ** on Friday, October 22, 2010 at 6:44pm.

how would I check this on my own? I know you put numbers in the place of the letters but when I do that I come up with my moms answer. this is what i have when I check my work. p=-2 q=3

6*(-2)*3 =-36 but 3(-2)(-2*3)=36 could you tell me what i'm doing wrong when I check them pls simplify expression

3(-p)(-2q) = 6pq

- math -
**Reiny**, Friday, October 22, 2010 at 7:06pm
3(-p)(-2q) = 6pq is correct like Ms Sue confirmed for you

to check: you let p=-2 and q=3

3(-p)(-2q) = 3(2)(-6) = -36

6pq = 6(2)(-3) = -36

since left side = right side, you had the right answer.

- math -
**TiffanyJ**, Friday, October 22, 2010 at 7:20pm
ok I see what I was doing wrong I was doing wrong thank you and my mom thanks you

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