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SpyIntel [72]
3 years ago
7

Which expression is equal to the polynomial below? 2x4 + 5x3 – 8x – 20 x3(2x + 5) + 4(2x – 5) x3(2x + 5) – 4(2x + 5) x3(2x – 5)

– 4(2x – 5) x3(2x + 5) + 4(2x + 5)
Mathematics
2 answers:
Agata [3.3K]3 years ago
8 0
When you group pairs of terms and factor each group, you get
  x³(2x + 5) – 4(2x + 5)
pishuonlain [190]3 years ago
6 0

Answer:

B) x^3(2x + 5) – 4(2x + 5)

Step-by-step explanation:

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lesya [120]

Answer:

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Step-by-step explanation:

now all you have to do is find factors which shouldn't be that hard

4 0
3 years ago
Thirty Mercedes and Audi participated in a 30 mile race. The average driving speed of the Mercedes and Audi were recorded. A ran
vladimir1956 [14]

Answer:

Median for sample 1 = 142

Median for sample 2 = 134

Step-by-step explanation:

For Sample 1:

For finding median, the data is first arranged into ascending or descending order. We are arranging the data in ascending order.

120, 130, 132, 136, 139, 142, 142, 144, 156, 165, 167

The formula for calculating the term which will be median is:

Median= ((n+1)/2)

Here in sample 1, n=11

So, putting n=11 in the formula

= ((11+1)/2)

= (12/2)

=6th term

The sixth term is 142, so

Median of sample 1=142

For Sample 2:

For finding median, the data is first arranged into ascending or descending order. We are arranging the data in ascending order.

112, 112, 113, 114, 125, 134, 141, 145, 146, 163, 165

The formula for calculating the term which will be median is:

Median= ((n+1)/2)

Here in sample 2, n=11

So, putting n=11 in the formula

=((11+1)/2)

=(12/2)

=6th term

The sixth term is 134, so

Median of sample 2=134

7 0
3 years ago
Please help with this
DIA [1.3K]
Sorry i cant see the picture so well
5 0
3 years ago
Read 2 more answers
Sushil was thinking of a number. Sushil divides by 7 then adds 7 to get an answer of 12. Form an equation
VikaD [51]

Answer:

The number is 35.

35 divided by 7 is 5, and 5 plus 7 is 12.

:)

3 0
3 years ago
Read 2 more answers
Multiply the polynomials.<br> (8x2 + 6x + 8)(6x – 5)
makvit [3.9K]

Answer:

48x^3 -4x^2 + 18x -40

Step-by-step explanation:

multiply 8x^2 by 6x and -5 ➡ 48x^3 - 40x^2

multiply 6x by 6x and -5 ➡ 36x^2 -30x

multiply 8 by 6x and -5 ➡ 48x -40

now add the like terms

48x^3 - 40x^2 + 36x^2 -30x + 48x -40 ➡48x^3 -4x^2 + 18x -40

6 0
3 years ago
Read 2 more answers
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