Verified answer

• Problem:

What polynomial can be added to x² - 2x + 6 so that the sum is 3x² + 7x?

• Solution:

To get the other added, you just need to subtract x² - 2x + 6 from 3x² + 7x.

• Expand the expression.
• Change the signs of the terms on the right side of the operation of subtraction.
• Simplify.

Try to check the answer by adding it from x² -2x + 6.

Thus, the answer is correct.

• Answer:

Polynomial 2x² + 9x - 6 can be added to x² - 2x + 6 so that the sum is 3x² + 7x.