Question

Myrna was asked to create an equivalent form of the rational expression 56k7−14k3+147k3
. Which of the following is a correct equivalent form?(1 point)

8k4−2+2k3

8k10−2k6+2k3

8k4+2k3

8k4−2k+2k3

Answer 1

I’m missing how the expression is written (where the exponents and any fraction bar are). Can you confirm exactly what you mean, using ^ for exponents and parentheses for a fraction if any? For example:

- 56k^7 − 14k^3 + 147k^3
- (56k^7 − 14k^3 + 147k^3) / (7k^3)
- 56k^7 − 14k^6 + 147k^3
- etc.

Quick checks for likely interpretations:
- If it is 56k^7 − 14k^3 + 147k^3, combine like terms: 56k^7 + 133k^3 = k^3(56k^4 + 133). (None of the answer choices match.)
- If it is (56k^7 − 14k^3 + 147k^3) ÷ (7k^3), you get (56k^7 + 133k^3)/(7k^3) = 8k^4 + 19. (Not in the choices.)
- If it is (56k^7 − 14k^6 + 147k^3) ÷ (7k^3), you get 8k^4 − 2k^3 + 21.

Tell me the exact original expression and I’ll pick the correct choice and show the steps.