Simplifying Expressions and Evaluating

The video tutorial covers expressions and the order of operations, introducing GEMDAS as a method to simplify expressions. It provides step-by-step solutions to example problems, demonstrating the use of grouping symbols, fractions, and evaluating expressions with given values. The tutorial also explains how to simplify expressions by distributing and combining like terms, and how to translate verbal expressions into algebraic expressions.

What does the 'G' in GEMDAS stand for?

• Gradients

• Geometry

• Grouping symbols

• Graphs

In the expression 6 squared minus 20 divided by parentheses, 2 cubed minus 3 plus 1, what is the first step according to GEMDAS?

• Calculate 6 squared

• Divide 20 by 5

• Simplify inside the parentheses

• Add 1

What is the result of 18 minus the absolute value of negative 6?

• 0

• 24

• 12

• 6

When evaluating the expression with a = 3 and b = -5, what is the result of 3 cubed plus 3 times -5?

• 0

• 12

• 27

• 15

What is the result of 12 divided by -12?

• 12

• 0

• -1

• 1

What is the simplified form of 2x plus 4x?

• 8x

• 2x

• 6x

• 4x

How do you express 'the sum of twice a number and 9' in algebraic form?

• 2n + 9

• 9n + 2

• n + 9

• 2 + 9n

What is the result of distributing 3 times (n - 4)?

• 3n - 12

• 3n + 12

• n - 12

• n + 12

What is the simplified result of negative 4 times c plus 8c?

• -4c

• 0

• 12c

• 4c

How do you express '8 less than the quotient of a number and -3'?

• n/-3 + 8

• n/3 - 8

• 8 - n/3

• n/-3 - 8