Answer:
7n+21=-28
Step-by-step explanation:
Answer: - 1/x or
Step-by-step explanation:
(-3x^2 /3 ) * (4x^3 / 4)
=> - (3x^3 / 4) * (4x^3 / 3)
=> - (x^2 * 4) / 4x^3
=> - (x^2 / x^3)
=> - 1/x or
Answer:
❤
Step-by-step explanation:


answer is: 
I hope it's help!