Organize the following expressions from greatest to least by number of terms: i. x + 2xyz ii. 3x + y + z iii. 2x2y + x2 − 3x + 4 iv. 9x2yz

Step-by-step explanation:

We are given expressions in the question.

Term in an expression:

We need to find the number of terms in each expression:

1)

2)

3)

4)

Arranged  from greatest to least by number of terms:

d. is the correct answer

step-by-step explanation:

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,