Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?x2(4x + 1) – 2(4x + 1)
x2(4x – 1) + 2(4x – 1)
4x2(x + 2) – 1(x + 2)
4x2(x – 2) – 1(x – 2)

Answers

Answer 1

Answer: group first 2 and group last 2 and find factors and undistribute

(4x^3+x^2)+(-8x-2)
(x^2)(4x+1)+(-2)(4x+1)
x^2(4x+1)-2(4x+1)
answer is first one

Answer 2

Answer:

The way to determine the factors of the given polynomial is; x²(4x + 1) - 2(4x + 1)

How to factorize polynomials?

We are given the polynomial;

4x³ + x² – 8x – 2

We can group the polynomial as follows;

(4x³ + x²) + (-8x - 2)

This grouping can be further factorized to get;

x²(4x + 1) + (-2)(4x + 1)

⇒ x²(4x + 1) - 2(4x + 1)

Read more about polynomials at; brainly.com/question/4142886

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Answer:

Option: c is the correct answer.

c) 70

Step-by-step explanation:

There are two choices in the quality of the item i.e. Cotton or wool.

There are 5 choice of color.

Also there are seven sizes.

Hence, in order to find the total number of items that are needed for a complete assortment we need to use to method of permutation.

i.e. the calculation is:

$2_P_1* 5_P_1* 7_P_1\n\n\n=(2!)/((2-1)!)* (5!)/((5-1)!)* (7!)/((7-1)!)\n\n\n=(2!)/(1!)* (5!)/(4!)* (7!)/(6!)\n\n\n=2* 5* 7\n\n\n=70$

Hence, the answer is:

c) 70

There are two types in five colours so 2x5=10. There are then seven sizes of each so 7x10=70. Your answer is C.70. I really need brainliest answers.

What are the first five terms in the arithmetic sequence An=6n, starting with n=1?

Answers

The arithmetic sequence : A n = 6 n
A 1 = 6 * 1 = 6
A 2 = 6 * 2 = 12
A 3 = 6 * 3 = 18
A 4 = 6 * 4 = 24
A 5 = 6 * 5 = 30
Answer:
The first five terms in the sequence are: 6, 12, 18, 24 and 30.

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Expand: (b + 2)(b - 4)