Difference of Squares

Factor: \(81x² - 121y²\)

Factor: \(81 - x²\)

___x² - 16 = (5x - 4)(5x + 4). What coefficient is missing?

Factor: \(25x² - 36\)

Factor: \(121x² - 1\)

Factor: \(9x² - 25\)

Factor: \(4 - 81x²\)

Factor: \(x² - 225\)

Factor: \(x² - 25y²\)

Factor: \(x² - 144\)

Factor: \(49 - 4x²\)

Factor: \(64 - 9y²\)

Factor: \(100x² - 9\)

Factor: \(49x² - 100\)

Factor: \(1 - x²\)

Factor: \(x² - 100y²\)

In the expression x² - 81, what are the square roots of the two terms used in the factors?

To use the Difference of Squares pattern, both terms must be perfect squares and separated by which sign?

Factor: \(x² - 64\)

Factor: \(36x² - 121\)

Factor: \(16 - 25x²\)

Factor: \(9x² - 64y²\)

Factor: \(25x² - 49y²\)

Factor: \(4x² - 9y²\)

Factor: \(x² - 1\)

Factor: \(81x² - 4\)

Factor: \(144x² - 1\)

Factor: \(16x² - 81\)

Factor: \(9 - 16x²\)

Factor: \(x² - 169\)

Factor: \(25 - 9x²\)

Factor: \(4x² - 1\)

Factor: \(1 - 4x²\)

Factor: \(16x² - 1\)

Factor: \(16y² - 49\)

Factor: \(x² - 36\)

Factor: \(4x² - 49\)

Factor: \(4x² - 121\)

Factor: \(x² - 1\)

Factor: \(25 - 4x²\)

Factor: \(64x² - 1\)

Factor: \(x² - 4\)

Factor: \(x² - y²\)

Factor: \(x² - 121\)

Factor: \(16x² - 25y²\)

Which expression is a perfect difference of squares?

Factor: \(100 - x²\)

Factor: \(x² - 49y²\)

Factor: \(9x² - 1\)

Factor: \(x² - 400\)