LCM / GCF, Exponents, Radicals

What is the greatest common factor of 42xy² and 28x³y?

• 84x³y²
• 14y
• 14xy
• 14xy²

What is the least common multiple of 28y²and 49y²?

• 7y
• 21y²
• 196y²
• 7y²

What is the least common multiple (LCM) of 48x²and 32x³?

• 8x²
• 16x²
• 16x
• 96x³

What is the greatest common factor (GCF) of 10b² and 10?

• 2
• 5
• 10
• 10b

Anything raised to a power of zero is always: 

• 0
• 1
• itself
• negative

Simplify (-4r⁵)(2r⁸)

• -8r¹³
• -2r¹³
• -8r⁴⁰
• -2y⁴⁰

Evaluate the expression using the quotient rule.

• x¹³
• x⁵
• x³⁶
• x^-5

• a⁸b¹³
• a²b⁷
• a¹⁵b³⁰

Which expression is equivalent to the given?

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• 
• 
• 

(5³x²y⁴)⁰

• 5xy
• 1
• 0
• 5