Which of the following is equivalent to (2x^3)(7x^4)

where are the answer choices

Step-by-step explanation:

2x + 3 = 7x + 4

3 + 2x = 7x + 4

3 + 2x = 4 + 7x

3 + 2x = 4 + 7x

3 + 2x + -7x = 4 + 7x + -7x

2x + -7x = -5x

3 + -5x = 4 + 7x + -7x

7x + -7x = 0

3 + -5x = 4 + 0

3 + -5x = 4

3 + -3 + -5x = 4 + -3

 3 + -3 = 0

0 + -5x = 4 + -3

-5x = 4 + -3

4 + -3 = 1

-5x = 1

 x = -0.2

1/4 and 8/3 because:

the reciprocal if 4 is 1/4 because 4 is used as 4/1 and the opposite of that is 1/4. the opposite of 3/8 is 8/3 so that is the answer.