Question

How Poga 1. What should be added to 3x2+2x+5 to get 2x+5​

Answer 1

Answer:

3x 2 + 2x + 5 to get 2x + 5

should be added

Answer 2

Here, we have to find out what has to be added to 3x² + 2x + 5 to get 2x + 5​

Let us assume y must be added to 3x² + 2x + 5 to get 2x + 5​

So, this can be written as

(3x² + 2x + 5) + y =  2x + 5​

Now, we will rearrange the entire equation to find out y

So, (3x² + 2x + 5) + y =  (2x + 5​)

                              y = (2x + 5)​ - (3x² + 2x + 5)

                                 = 2x + 5 - 3x² - 2x - 5

                                 = - 3x²

Hence, - 3x² must be added to 3x² + 2x + 5 to get 2x + 5​