Factoring Differences of Squares with Two Variables

What is the first step in factoring x squared minus 49y squared?

• Combine like terms

• Identify the perfect squares

• Expand the expression

• Identify the coefficients

What is the square of 7y?

• 7y squared

• 14y

• 7y

• 49y squared

What is the result of multiplying a plus b and a minus b?

• a plus b squared

• a squared minus b squared

• a minus b squared

• a squared plus b squared

In the expression a squared minus b squared, what does a represent in the given problem?

• 7y

• x

• 49y

• x squared

In the expression a squared minus b squared, what does b represent in the given problem?

• 7y

• x squared

• x

• 49y

How can x squared minus 49y squared be expanded using the difference of squares?

• (x + 7y) times (x + 7y)

• (x - 7y) times (x - 7y)

• (x + 7y) times (x - 7y)

• (x - 7y) times (x + 7y)

What pattern is used to factor x squared minus 49y squared?

• Quotient of squares

• Product of squares

• Difference of squares

• Sum of squares

What is the final factored form of x squared minus 49y squared?

• x plus 7y times x plus 7y

• x squared minus 7y squared

• x minus 7y times x minus 7y

• x plus 7y times x minus 7y