SOLUTION: I have the following expression:
2x^2-5 over x+9
where x=-1
so worked it to 2(1)-5 = -3 over -1+9 = 8
(figured first x=1 due to -1*-1...becomes positive, right?)
wou
Algebra ->
Expressions-with-variables
-> SOLUTION: I have the following expression:
2x^2-5 over x+9
where x=-1
so worked it to 2(1)-5 = -3 over -1+9 = 8
(figured first x=1 due to -1*-1...becomes positive, right?)
wou
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Question 628390: I have the following expression:
2x^2-5 over x+9
where x=-1
so worked it to 2(1)-5 = -3 over -1+9 = 8
(figured first x=1 due to -1*-1...becomes positive, right?)
would this be correct?
The question I have says "Evaluate the expression where x=-1." Then says select one of the options below as your answer....which are: A. -7 over 8; B. -3 over 8; C. -1 over 8; and D. -1. I would go with answer B, but it has been almost 20 years since I've done algebra and don't want to make any mistakes.
Thank you!
Jenny Answer by John10(297) (Show Source):
