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Tutorial - Evaluating an expression with one variable ex 8, (-x^2 +1)/3; x = 3

https://www.youtube.com/watch?v=mCQunJV8kU4

Learn how to evaluate for a function

https://www.youtube.com/watch?v=9zuvyuLsbPU

How to find equivalent expressions by combining like terms and using the distributive property

https://www.youtube.com/watch?v=rHNY01R2VSQ

Evaluating mathematical expressions

https://www.youtube.com/watch?v=QGNjfsHF9rQ

How do you factor a perfect square trinomial

https://www.youtube.com/watch?v=KygGipMmebI

How to write a verbal expression from an algebraic expression

https://www.youtube.com/watch?v=sv-3LAVTv8M

Main Topic: Numerical value of an algebraic expression

The numerical value of an algebraic expression is the result obtained by substituting the variables by a numerical value given.

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