3x 2 + 2x - 5 and -4 + 7x 2 How can I solve this addition using vertical format?

Answer 1

3x² + 2x - 5

7x² - 4

10x²+2x - 9 = 10x²+2x-9

You first align them then add the coefficients with the same base such as 3x² and 7x² have the same base of x² therefore 3 + 7 = 10 and you get 10x²