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Echems3Hey Class
The first one i chose is called "a perfect square trinomial" and it is defined as a trinomial that can be written as the square of a binomial.
formula: (a^2)+2(a)(b)+(b)^2=(a+b)(a+b)
Example:
Perfect square trinomial: 9x^2+24xy+16y^2
=(3x)^2+2(3x)(4y)+(4y)^2
binomial: =(3x+4y)(3x+4y)
The second one I chose was "difference of squares," and it is used when a phrase may be thought of as the difference between two perfect squares. Formula: (a+b) (a-b)=(a^2+b^2)
Example: x^2-64 can be factored as (x+8)(x-8).
References:
https://www.youtube.com/watch?v=aM1qf2QN8YELinks to an external site.
https://www.youtube.com/watch?v=vypGuPy6g2ALinks to an external site.
- a year ago
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