Expressions with unknown variables - By Khan Academy
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DESCRIPTION:
Sal solved a few examples where we need to evaluate an expression, but we don't know the individual variable values.
OVERVIEW:
Expressions with unknown variables is a free educational video by Khan Academy.It helps students in grades 9,10,11,12 practice the following standards HSA.SSE.A.2.
This page not only allows students and teachers view Expressions with unknown variables but also find engaging Sample Questions, Apps, Pins, Worksheets, Books related to the following topics.
1. HSA.SSE.A.2 : Use the structure of an expression to identify ways to rewrite it. For example, see x4 - y4 as (x2)2 - (y2)2, thus recognizing it as a difference of squares that can be factored as (x2 - y2)(x2 + y2)..
