Factour ouf 3
f(x)=3(x²-9)
recognize diference of 2 perfect squres
a²-b²=(a+b)(a-b)
x²-9=x²-3²=(x+3)(x-3)
so
f(x)=3(x+3)(x-3)
seto to zero to find roots
0=3(x+3)(x-3)
0=x+3
-3=x
0=x-3
3=x
roots at x=-3 and 3
Okay I'm going to give you an example and steps so you know how to do this
1+2x^2-4-x^2+x
Subtract 4 from 1 to get -3
2x^2-3-x^2+x
Subract x^2 from 2x^2 to get x^2
X^2-3+x
Move -3
x^2+x-3
The individuals in this data set are B) Compression bandage styles
The style tags in the first column is what Alex is surveying.
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This data set contains A) 3 variables, 1 of which is categorical
The three variables are
The first two are quantitative data. We can do math on them such as finding the average. The last variable is categorical. We cannot apply the average as the average color doesn't really make sense. We simply have a list of labels, so this data is nominal. It is not ordinal because we cannot sort the colors.
Question one is last option between 8 and 9
A cus no matter how much 0000000s u put it still equals the same value