Question

Find the sum of 2x+5x²7 and -10x²7x+1.

Answer 1

`-5x^2+9x+8`

Step-by-step explanation:

Combine like terms

`-10x^2 + 5x^2=-5x^2`

7x+2x=9x

7+1=8

So
`-5x^2+9x+8` , is your final answer

Answer 2

The sum of the polynomial expressions 2x + 5x² and -10x² + 7x + 1, after correcting the typo, is -5x² + 9x + 1 by combining like terms.

Step-by-step explanation:

The question appears to involve combining two polynomial expressions. A typo in the first polynomial is present, but it seems to be 2x + 5x². The second polynomial expression is given as -10x² + 7x + 1. To find the sum of these two polynomials, we combine like terms.

First we rewrite both polynomials:

• 2x + 5x²
• -10x² + 7x + 1

Now, we combine like terms:

1. Add the x-squared terms: 5x² - 10x² = -5x²
2. Add the x terms: 2x + 7x = 9x
3. Add the constant terms: There is only one constant, 1

The sum of the polynomials is: -5x² + 9x + 1.