Evaluating an expression with 3 terms, Given a=12, b=9 and c=4. Find (b^2 -2c^2)/(a+c-b)

The video tutorial guides students through solving a mathematical expression using the order of operations. It emphasizes the importance of applying exponents before multiplication and division, highlighting common mistakes students make. The instructor provides a step-by-step solution, ensuring students understand each part of the process, and concludes with the correct final answer.

What is the value of 'a' in the given problem?

• 16

• 4

• 12

• 9

Which operation should be performed first according to the order of operations?

• Exponents

• Subtraction

• Addition

• Multiplication

What is the result of 9 squared?

• 27

• 36

• 81

• 18

After applying exponents, what is the next step in the order of operations?

• Addition and Subtraction

• Exponents

• Multiplication and Division

• Parentheses

What is the final result of the expression after simplification?

• 42

• 7

• 49

• 56