Evaluating Expressions and Factors

The video tutorial explains how to evaluate an expression by substituting given values for variables and simplifying the resulting fraction. It covers the process of simplifying both the numerator and denominator separately, finding the greatest common factor, and reducing the fraction to its simplest form. The tutorial also demonstrates how to verify the result using a calculator, converting a decimal back to a fraction.

What values are substituted for a, b, c, and d in the expression?

• a = 2, b = 12, c = 19, d = -35

• a = 2, b = -12, c = 19, d = 35

• a = -2, b = 12, c = 19, d = 35

• a = -2, b = 12, c = 35, d = 19

What is the result of the numerator after substitution?

• 10

• 14

• -10

• 12

What is the result of the denominator after substitution?

• 14

• -14

• 16

• -16

What is the initial fraction before simplification?

• -10/-16

• 10/16

• 10/-16

• -10/16

What is the greatest common factor of 10 and 16?

• 3

• 2

• 1

• 4

What is the simplified form of the fraction 10/-16?

• 8/5

• -5/8

• 5/8

• -8/5

What is the only common factor between 5 and 8?

• 1

• 2

• 8

• 5

What is the purpose of using a calculator in this context?

• To calculate the initial expression

• To find the greatest common factor

• To verify the simplified fraction

• To check the order of operations

What is the decimal value of the expression before converting to a fraction?

• -0.625

• 0.625

• 1.25

• -1.25

What is the final verified fraction of the expression?

• 8/5

• 5/8

• -5/8

• -8/5