From the sum of 3a^2−ab−2b^2 and 2a^2+5ab−3b^2 subtract a^2−3ab−4b^2

4a^2+7ab-b^2

Step-by-step explanation:

Add the first two equations together:

  3a^2-ab-2b^2

+ 2a^2+5ab-3b^2

5a^2+4ab-5b^2

Subtract that answer from the remaining trinomial:

 5a^2+4ab-5b^2

- a^2-3ab-4b^2

4a^2+7ab-b^2

if im undersanding the question correctly, its organized from 10

step-by-step explanation:

the answer is b.

step-by-step explanation:

identity property is where 0+whatever number=whatever number. basically 0+ a number.