
polynomials
A) For the polynomial y=x^7(x+5)(4x6)(7x)
State the degree=
and the number of terms=
*I got
State the degree=6
and the number of terms=8
however it says im wrong
B)For the polynomial y=4x^5+6x^9+7x^2+9x9
the number of terms=
*I got
the number of terms=17
however it says im wrong

I am afraid you are wrong
Polynomial (x+5)(4x6)(7x) degree is 3
When you multiply par x^7 the degree becomes 10


A) equals to: $\displaystyle 210 x^7 + 128 x^8 + 14 x^9  4 x^{10}$
so the degree is 10 and it has 4 terms.
B) it has 5 terms.
Check this link.