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December 21, 2014

December 21, 2014

Posted by **Lisa** on Sunday, December 25, 2011 at 5:35pm.

Express as a trinomial:

(2x-3)(x+7)

IS THE ASNWER 2x^2 + 11x - 21

WHAT IS THE VALUE OF 2 times 5^-2

IS THE ANSWER 2/25

DIVIDE:

x/x^2-49 divide by 5x^3/x^2 + 9x + 14

IS THE ANSWER x+2/5x^2(x-7)

- help check please -
**Lisa**, Sunday, December 25, 2011 at 6:27pmPLEASE CHECK THESE ANSWERS

- ALGEBRA 1 -
**Henry**, Sunday, December 25, 2011 at 6:42pm1. Correct.

2. Correct.

3. Correct! Good job!!

- ALGEBRA 1 -
**TRACY**, Sunday, December 25, 2011 at 6:43pmthanks

- ALGEBRA 1 -
**drwls**, Monday, December 26, 2011 at 5:50amx/(x^2-49) divided by 5x^3/(x^2 + 9x + 14)

= [x/(x^2-49])*[(x^2 + 9x + 14)/5x^3]

= x/[(x+7)(x-7)]*[(x+7)(x+2)/5x^2]

= (x+2)/[5x^2*(x-7)]

Yes, #3 is correct. Your #2 requires parentheses. One of the ambiguous versions is correct.

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