Question

question
find the sum of $2x^2 + 5x + 7$ and $-10x^2 - 7x + 1$.

Explanation:

Step1: Write the sum expression

$(2x^2 + 5x + 7) + (-10x^2 - 7x + 1)$

Step2: Group like terms

$(2x^2 - 10x^2) + (5x - 7x) + (7 + 1)$

Step3: Combine like terms

$(-8x^2) + (-2x) + 8$

Answer:

$-8x^2 - 2x + 8$