7x^2y - 28xy^3 + 14xy^2 = ?

7x • (x + 2y2 - 4y)

Step-by-step explanation:

1. ((7 • (x2)) + (2•7xy2)) - 28xy

2. (7x2 + (2•7xy2)) - 28xy

3. Pull out like factors :

7x2 + 14xy2 - 28xy = 7x • (x + 2y2 - 4y)

4. Factoring x + 2y2 - 4y

Try to factor this multi-variable trinomial using trial and error

The factorization then fails so your final answer would be left simplified at

7x • (x + 2y2 - 4y)

b: |12 – x| ≤ 0.25

step-by-step explanation:      

let x be the possible lengths in inches, of the ribbons jaime cut.

we have been given that jaime is cutting strips of ribbon for a project. he tries to cut each piece to be 12 inches long, but sometimes he cuts it too long or too short by as much as 0.25 inch.  

we can represent this information in an inequality as:

by the definition of absolute value function we will get,

upon combining our inequalities we will get,

therefore, the inequality   describes all the possible lengths (x), in inches, of the ribbons jaime cut.

step-by-step explanation:

step-by-step explanation:

yes it represnts a functio, their are not 2 of the same numbers on the both sides