Factoring, Exponents, and LCM Problems

This video tutorial covers solving common problems encountered in GED tests. It begins with adding fractions by finding the least common multiple and converting improper fractions to mixed numbers. The video then explains substitution in expressions and the order of operations using PEMDAS. It also demonstrates solving equations by substitution and factoring. Finally, it covers simplifying algebraic expressions using exponent rules. The tutorial provides practical tips and strategies for tackling these problems effectively.

What is the least common multiple of 4 and 5?

• 15

• 25

• 20

• 10

How do you convert the improper fraction 23/20 into a mixed number?

• 1 2/20

• 1 3/20

• 2 3/20

• 2 2/20

What is the value of 3 squared?

• 6

• 9

• 12

• 15

If X = 3 and Y = 2, what is the value of 2 to the third power?

• 8

• 10

• 6

• 4

Which value of X satisfies the equation X^2 - 7X + 12 = 0?

• 2

• 3

• 5

• 4

What is the result of factoring the trinomial X^2 - 7X + 12?

• (X - 1)(X - 12)

• (X - 2)(X - 6)

• (X - 5)(X - 7)

• (X - 3)(X - 4)

What is the simplified form of 2^4?

• 20

• 8

• 16

• 12

When multiplying variables with exponents, what should you do with the exponents?

• Divide them

• Multiply them

• Subtract them

• Add them

What is the result of 3 squared times 3?

• 9

• 12

• 27

• 6

What is the final simplified form of the expression 16a^14b^16?

• 14a^16b^12

• 16a^12b^14

• 12a^16b^14

• 16a^14b^16