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factor completely 5x4 − 80.
a. 5(x^2 − 4)(x^2 + 4)
b. 5(x − 2)(x + 2)(x + 2)(x + 2)
c. 5(x − 2)(x + 2)(x^2 − 4)
d. 5(x − 2)(x + 2)(x^2 + 4)

Step-by-step explanation:

Since this is a 4th degree polynomial, 2 of the roots will not be real.  Finding them is next to impossible off a calculator until the real ones are found first.  That's  simple enough process.

and

Divide both sides by 5:

Rewrite to get

which simplifies down to

Taking the square root of both sides gives you the real roots of x = 2 and -2.

That leaves you with 2 roots that are imaginary.  After you factor out the 2 and the -2 by synthetic division, you are left with the depressed quadratic

 Factor out the 5:

So the final answer is D.

$4

step-by-step explanation:

$30×5=$150

$150 minus $130=$20

$20÷5=$4.

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the data of the detroit pistons in numerical order from least to greatest is 0.30, 0.37, 0.55, 0.62, 0.69, 0.72, 0.73, 0.75, 0.77, 0.78, 0.80, 0.81, 0.81, 0.83, 0.84, 0.89

the data of the miami heat in numerical order from least to greatest is 0.50, 0.50, 0.56, 0.57, 0.67, 0.72, 0.72, 0.72, 0.75, 0.75, 0.76, 0.81, 0.82, 0.90, 1.00, 1.00

the detroit pistons median : 1.52

the miami heat median: 1.47

the iqr of this data is 0.05