Verified answer

Answer:

To add the two given expressions, we need to combine like terms. Here's the step-by-step work:

Expression 1: x³ + 2y - x²

Expression 2: x² - 6x³ - y

Step 1: Group the like terms together:

x³ - 6x³ + x² + 2y - y

Step 2: Combine the like terms:

(-5x³) + x² + y

So, the sum of the two given expressions is: -5x³ + x² + y

Step-by-step explanation:

Answer:

x

[tex]( {x}^{3} + 2y - {x}^{2}) + ( {6x}^{3} - y) \ \\ = {x}^{3} + 2y - {x}^{2} + {6x}^{3} - y \\ = {x}^{3} + {6x}^{3} - {x}^{2} + 2y - y \\ = {7x}^{3} - {x}^{2} + y [/tex]

Step-by-step explanation:

This is how to do it i have written it according to letter and power wise it puts good impression if you write it power and letter wise . First you have to do ascending order of letters and then the biggest power should be placed first in descending order