Question

Which of the following is a factor of 64x3 + 343?

Answer 1

Options?

Answer 2

4x – 7
None of the above
16x2 – 28x + 49
16x2 + 56x + 49

Answer 3

Which of the following is a factor of 2x3 – 2?

Answer 4

For the first one, you must use a^3 + b^3 identity.

Answer 5

Hint:
1. 64x^3+343 = (4x)^3+7^3
2. x^3+y^3=(x+y)(x^2-xy+y^2)

Answer 6

3rd option

Answer 7

where are the options for the 2nd question?

Answer 8

4x – 7
None of the above
16x2 – 28x + 49
16x2 + 56x + 49

Answer 9

I asked for the question Which of the following is a factor of 2x3 – 2?

Answer 10

idk sorry

Answer 11

For ur 1st question answer is option 3. That is 16x2 – 28x + 49. U mean no options were given for that question.

Answer 12

x2 + x + 1
x + 1
None of the above
x2 + 2x + 1
here it is

Answer 13

Ist option is the right answer.

Answer 14

thank you alot... do u happen to know this one?

Which of the following is a factor of 8x2 + 21x + 10?

a.None of the above
b.4x + 5
c.x + 2
d.2x + 5

Answer 15

(x+2)

Answer 16

Identify the degree of the polynomial 6xy2 – xy + 8 + 12y.

Answer 17

Which of the following represents the area of a rectangle whose length is x + 1 and whose width is x + 11?
a. x2 + 12x + 11
b.x2 + 11
c.x2 + 10x + 11
d.x2 + 11x + 12

Answer 18

Factor completely 3x3 – 21x2 – 27x
a. 3x(x2 – 7x – 9)
b.3(x2 – 7x – 9)
c.3x(x + 1)(x – 9)
d.3(x3 – 21x2 – 27x)

Answer 19

Hints:
1. The degree of a polynomial corresponds to the term with the highest degree, including all variables. So in 6xy2 – xy, 6xy^2, the degree is 3, and -xy has a degree of 2. Expand (x+1)(x+11) (using FOIL if necessary to find the answer.
3. 3x3 – 21x2 – 27x note the common factor of 3x, which makes
3x3 – 21x2 – 27x=3x(x^2-7x-9). Don't think there are more rational factors.