Question

True or false3. The expression 78 − 22 + − 4 is a polynomial of degree 8

Answer 1

The expression is:

`7x^8-2x^2+x-4^{}`

In general, a polynomial has the form:

`a_nx^n+a_(n-1)x^(n-1)+\cdots+a_1x+a_0,a_n\\e0`

And we say that the polynomial is the degree n.

In our expression. a_n=7 and that is not equal to zero. Then, the expression is of degree 8 since a_n=7=a_8. The answer is true.