Sal expresses (x+3)(x-3) as x^2-9 and discusses how the general form (x+a)(x-a) can be written as x^2-a^2 (this is called difference of squares).
Find special products of binomials (basic) is a free educational video by Khan Academy.It helps students in grades 0 practice the following standards HSA.SSE.B.3.
1. HSA.SSE.B.3 : Choose and produce an equivalent form of an expression to reveal and explain properties of the quantity represented by the expression.
Ratings & Comments
0 Ratings & 0 Reviews