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Please help I have already asked these questions 3 times, Thank you soo much! - Alyssa

(Even if you can only do 1 it would mean a lot!) :)

Please help I have already asked these questions 3 times, Thank you soo much! - Alyssa-example-1
Please help I have already asked these questions 3 times, Thank you soo much! - Alyssa-example-1
Please help I have already asked these questions 3 times, Thank you soo much! - Alyssa-example-2
Please help I have already asked these questions 3 times, Thank you soo much! - Alyssa-example-3
Please help I have already asked these questions 3 times, Thank you soo much! - Alyssa-example-4
Please help I have already asked these questions 3 times, Thank you soo much! - Alyssa-example-5
User Yogendra
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1 Answer

4 votes
For the third problem, your work should look like this:

-b +/- √b^2 - 4ac / 2a ***** Plug in what you know ***********


-4 +/- √4^2 - 4(6)(-3) / 2(6) ***** Simplify ****************************


-4 +/- √4^2 + 72 / 12


-4 +/- √16 + 72 / 12


-4 +/- √88 / 12 (The -4 and 12 can be simplified since they are constants.)


-1 +/- √88 / 3 (√88 can be broken down)


√88 = 2√22 this means that you should now have:


-1 +/- 2√22 / 3


**** Now you have 2 different answers *************************************

If they want the exact answers, leave the answers as what you have. If they want an approximation as your answer, then simplify the problem further.

For exact answers:

answer 1: answer 2:

-1 + 2√22 / 3 -1 - 2√22 / 3


For completely simplified answers:

answer 1: answer 2:

-1 + 9.38 / 3 -1 - 9.38 / 3

8.38 / 3 -10.38 / 3

x = 2.79 x = -3.46

******* Note that the 9.38 is a rounded value. It is not the exact decimal because it was rounded to the nearest hundredths place. *****************

******* Also note that the first answer is rounded to the nearest tenths place. *********
User Sebastian Inones
by
7.8k points

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