Question

what should be added to 2x²-3x+4 to get x²-x+11​

Answer 1

Answer:

yep

Step-by-step explanation:

Answer 2

Answer:

-x^2+2x+7

Step-by-step explanation:

For example, what should be added to 4 to get 10? We substract 4 FROM 10, 10-4=6

So here, we subtract the first part from the second part.

Let us call 2x²-3x+4 as A and x²-x+11 as B.

So B-A

x^2-x+11-(2x^2-3x+4)

Note: We have to put the second part in brackets,otherwise the answer will be incorrect. The second part is taken as one whole, so put it in brackets)

After opening the brackets, all the signs change in part B.

x^2-x+11-2x^2+3x-4

-x^2+2x+7 ( C )

To check if it's correct, add A and C and see if it comes to B.

2x²-3x+4+(-x^2+2x+7)

2x^2-3x+4-x^2+2x+7

x^2-x+11 ( B )

Thus it is correct!