The correct answer would be B.)
Multiplying -5x-7= 35
Multiplying two negative numbers gives you a positive
It would be 1/8. 2 to the third is 8, and all three answers correct is one option.
And that is how you get your answer
18x^5-3x^4+x^3-x^2-72x^3+12x^2-4x+4, and then you will combine like terms to be :
18x^5-3x^4-71x^3+11x^2-4x+4
