Question

If the question is how many variable terms are in 3x^3y + 5x7 - 4y + x-z+9 the answer would be 7 because each of the variables are separated by the + and - signs and if you count them like that right now you would get 5 and if you add the 3 from the beginning you would get 7 saying that the variable terms are represented by the letters am I correct.

Answer 1

Given:

The expression is

`3x^3y+5x^7-4y+x-z+9`

To find:

The number of variable terms.

Solution:

Constant values, variables, product of constants and variables are known as terms if they are separated by "+" sign.

The terms which contain atleast one variable is called variable terms.

We have,

`3x^3y+5x^7-4y+x-z+9`

Here, the terms are
`3x^3y,5x^7,-4y,x,-z` and 9.

All terms contain variables except 9 which is a constant.

Therefore, the number of variable terms is 5.

Hence, your answer was not correct.