Polynomials Episode 10: Difference of Squares - 5:26
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English - January 04, 2009 05:10 - ★★★★ - 7 ratingsCourses Education papapodcasts math mathematics quadratic functions relations parabola parabolas trigonometry ratio Homepage Download Apple Podcasts Google Podcasts Overcast Castro Pocket Casts RSS feed
Next Episode: Polynomials Ep.11: Area Perimeter & Polynomials - 5:33
KEY CONCEPT:
(a-b)(a+b) = a^2-b^2
Since the middle terms equals zero, of the FOIL method all we need to do it the First and the Last.
**NOTE: we subtract the first squared value with the second.