Question

please answer above question no 3
step by step explanation ​

Answer 1

Answer:

degree of ploynomial (x³+5)(4-x³)

is 9

Step-by-step explanation:

(x³+5)(4-x³)

4x³-x⁹+20-5x³

-x⁹-x³+20

{since degree of a polynomial is the highest power of a polynomial}

so degree of polynomial (x³+5)(4-x³) is 9

Answer 2

Answer: 6

see image for explanation.

9 is wrong u can see x3*x3=x*x*x*x*x*x