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Round all answers to the nearest hundredh. Evaluate each expresion for the values given.. b^2-4ac;b=3.a=-1,c=-2

Pre-Algebra
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just put the values
im so lost.. i been on this for twoo days
3^2-4(-1)(-2)

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Other answers:

can you do it now
10
3^2 = 9 4(-1)(-2) = 8 now do it
not 10 its 9-8 =???
1
yap
b^2 - 4ac Replace the letters with their given values and do the math. (3)^2 - 4(-1)(-2) 9 - 8 = 1 The answer is 1. Look for me on facebook for picture reply to math questions.

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