Question

How much is 5a²–2ab+c² less than 2a²+7ab+2c² ​

Answer 1

Step-by-step explanation:

5a²–2ab+c² - (2a²+7ab+2c²)

3a²-9ab-c²

Answer 2

Step-by-step explanation:

2a²+7ab+2c²

-5a²-2ab+ c²

( the signs in the second

algebraic expressions will be

changed)

means it will be+5a²+2ab-c²

so now,

2a²+7ab+2c²

5a²+2ab-. c². (it is subtraction)

'.

7a²+9ab-. c²

hope this helps you