Question

subtract 12x^2+6y-3 and 3x^2-9y+12

Answer 1

Answer:

15x² - 3y + 9

Step-by-step explanation:

(12x² + 6y - 3) + (3x² - 9y + 12)

12x² + 6y - 3 + 3x² - 9y + 12

12x² + 3x² + 6y - 9y + 12 - 3

15x² + 6y - 9y + 12 - 3

15x² - 3y + 12 - 3

15x² - 3y + 9

Answer 2

Answer:

The correct answer is 9x² +15y - 15

Step-by-step explanation:

Let's subtract 12x^2+6y-3 and 3x^2-9y+12:

12x^2 +6y - 3

-

3x^2 -9y  + 12

_______________

9x² +15y - 15