First you graph it using a graphing calculator, you look at the table of values to find out one point in which y= 0. The first one that comes up is when x=1. If you don't have a graphing calculator you can use trial and error by inputing some numbers into x until you get y= 0.
Once you have an x value which makes y=0, you can start factorizing it. you divide 6x3 +4x2 -6x - 4 into (x-1) which is when y =0 to get 6x2+10x+4
This can be used to write the polynomial as (x-1)(6x2 +10x+4) you then factorize the second bracket, 6x2 +10x+4. you can take the 2 outside to give you 2(3x2 +5x+2) you can factorize this to become 2(3x+2)(x+1)
Now you just substitute your factorized second bracket into your unfactorized second bracket to give you 2(3x+2)(x+1)(x-1).
jadas practice time is 168 minutes or 2 hours 48 minutes. Diegos practice time is 235 minutes or 3 hours 55minutes hope this helps! have a nice day and good luck with your test!
Well you have to first find the constant of Brand X which would be 2.70/10 = .27. Brand Y is .4 more so that would be .31 per ounce. So then .31 x 11 = 3.41. The cost of 11 ounces of brand Y is $3.41.
