Question

What is special products

Answer 1

Special products are referred as such because they follow a pattern.

Sum of squares: (a + b)(a + b) = a² + 2ab + b²

Difference of squares: (a + b)(a - b) = a² - b²

Examples

(x + 3)(x + 3) = x² + 2(3)(x) + 3²

= x² + 6x + 9

(x + 3)(x - 3) = x² - 9