Evaluate an expression with one variable ex7, 3(8(y - 1)^2 - 4); y = 2

The video tutorial explains how to solve a mathematical expression using the order of operations, specifically PEMDAS. It begins with an introduction to the concept, followed by identifying the problem and the variable involved. The instructor then demonstrates a step-by-step application of PEMDAS to solve the expression, ensuring each operation is performed in the correct order. The tutorial concludes with the final solution to the expression.

What is the first step in solving an expression when a variable is present?

• Perform all operations in order

• Substitute the variable with its given value

• Start with addition

• Ignore the variable and solve

When using PEMDAS, which operation should be performed first?

• Subtraction

• Parentheses

• Addition

• Multiplication

How do you handle nested parentheses in an expression?

• Solve the outermost parentheses first

• Ignore the inner parentheses

• Solve the innermost parentheses first

• Perform operations outside the parentheses first

After handling parentheses, which operation comes next according to PEMDAS?

• Division

• Subtraction

• Exponents

• Addition

What is the final result of the expression after all operations are completed?

• 14

• 10

• 12

• 8