Subtract -2a² - 2b² from - a² - b² + 2ab

Solution:

Given, the expressions are -2a² - 2b² and - a² - b² + 2ab.

We have to subtract the expressions

On subtracting the expressions,

= - a² - b² + 2ab - (-2a² - 2b²)

= - a² - b² + 2ab + 2a² + 2b²

By combining the like terms,

= -a² + 2a² - b² + 2b² + 2ab

By distributive property,

= (-1 + 2)a² + (-1 + 2)b² + 2ab

= (1)a² + (1) b² + 2ab

= a² + b² + 2ab

Therefore, the required expression is a² + b² + 2ab.

✦ Try This: Subtract -6a² - 5b² from - 2a² - 2b² + 4ab

☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 12

NCERT Exemplar Class 7 Maths Chapter 10 Problem 58 (f)

Subtract -2a² - 2b² from - a² - b² + 2ab

Summary:

On subtracting -2a² - 2b² from - a² - b² + 2ab, we get a² + b² + 2ab

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