All categories

3 years ago

Factor out the common factor. 2x4 + 5x3 – 8x –20 (x3 + 4)(–2x – 5) (x3 – 4)(2x + 5) (x3 + 4)(2x + 5)

Mathematics

2 answers:

Brums [2.3K]3 years ago

7 0

Answer:

$(x^3-4)(2x+5)$

Step-by-step explanation:

$2x^4 + 5x^3 - 8x -20$

To factor this we use grouping method

$(2x^4 + 5x^3)+(- 8x -20)$

Take out GCF from each group. x^3 is the GCF for first group and -4 is the GCF from second group

$x^3(2x+5)-4(2x+5)$

Now we factor out 2x+5

$(x^3-4)(2x+5)$

horsena [70]3 years ago

4 0

Answer:

The common factor is (x3 – 4)(2x + 5)

Step-by-step explanation:

1. find gcf

2. factor out the gcf

3. use grouping

You might be interested in

What is true of the coefficient of variation?

DedPeter [7]

Answer:

A. The coefficient of variation is best used when comparing two data sets that use the same units of measure.

Step-by-step explanation:

The coefficient of variation (CV), is simply the standard deviation (itself a measure of variance or variation) relative to the mean of a distribution.

The coefficient of variation expresses a random variable’s variability in percentage terms. Therefore it is possible, through the coefficient of variation, to compare the variability of data across different samples, especially if the random variables are recorded in different units of measurement (such as cm, kg and minutes).

A coefficient of variation is always interpreted as a percentage. Mathematical representation is:

$Coefficient\ of\ variation\ = \frac{Standard\ deviation}{Mean}\ \%$

The coefficient of variation is best used when comparing two data sets that use the same units of measure.

Hence, the option (A) is the correct option.

5 0

3 years ago

What is the parallel line and slope of a perpendicular like for 3x+5y=4

jonny [76]

Answer:

a line parallel has the same slope and different y-intercept, and the slope of the perpendicular line would be -3/5

Step-by-step explanation:

3x + 5y = 4

5y = -3x + 4

y = -3/5x + 4/5

8 0

3 years ago

Mr. Wilson wants a new version of Animal Crossing for Christmas. Mrs. Tilson-Wilson finds it for $64.50. If she waits until Cybe

Anarel [89]

The answer is $51.60

8 0

3 years ago

Translate the sentence into an equation two more than the product of a number and 8 is 3.

Bingel [31]

Answer: 8x + 2 = 3

Step-by-step explanation: "two more than" means "add 2" which is +2

The product of 8 and a (unknown) number is 8x

Use the = sign in place of "is"

3 0

3 years ago

Solve for y: x + 2y = -8 y=-1/2x+4 y=-1/2x-4 y=-2x - 4 y=1/2x-4

adelina 88 [10]

Answer:

x + 2y = -8 = y = -4 - 1/2x

y= -1/2x + 4 = y = 4

y= -1/2x - 4 = y = -4

y=-2x - 4 = y = -4

y=1/2x-4 = y = -4

Step-by-step explanation:

(x + 2y = -8 = y = -4 - 1/2x)

$x+2y=-8\\2y=-8-x\\y=-4-\frac{1}{2}x\\$

4 0

3 years ago