Answer:
Step-by-step explanation:
a)[tex]4x^3 -7x+2[/tex]
This is not a rational expression.
This is a polynomial with 3 terms.
b)[tex]3x^5+4x-6[/tex]
This is not a rational expression because the denominator is constant =1
This is a polynomial with 3 terms.
c)[tex](7x^2+3)(5x+1)[/tex]
This is not a rational expression because the denominator =1, a constant. This is a polynomial with 4 terms.
d)[tex]9x^2-6x+1 divided by 5x+7[/tex]
This is a rational expression because the denominator contains a variable.
e) [tex]8x^4-x^3+6x^2-3x+9[/tex]
This is not a rational expression because the denominator contains a constant 1
This is a polynomial with 5 terms.
Answer:
9x²-6x+1 divided by 5x+7:
This is a rational expression because the denominator contains a variable.
This is a polynomial with 3 terms
Explanation:
The only statement that is true is:
9x²-6x+1 divided by 5x+7:
This is a rational expression because the denominator contains a variable.
This is a polynomial with 3 terms.
Variables are represented as 'letters' in mathematics. Since the equation is divided by 5x+7, this shows that the expression is rational i.e a fraction and the denominator 5x+7 contains a variable which is 'x'
The polynomial function here is the function at the numerator i.e 9x²-6x+1 and this contains 3terms. The three terms are 9x², -6x and 1.
