Just as the name suggests, a difference of squares is an expression of the form: a^{ 2} − b^{ 2}.A difference of squares can be factored like this: a^{ 2} − b^{ 2} = (a + b) (a − b). |
Algebra Coach Exercises |
Similar to a difference of squares, a sum of squares is an expression of the form: a^{ 2} + b^{ 2}.A sum of squares cannot be factored over the real numbers but over the complex numbers it can be factored like this: a^{ 2} + b^{ 2} = (a + b i ) (a − b i ),where . |
Algebra Coach Exercises |