Adding and Subtracting Polynomials - Simplifying Like Terms
In this video, Mikela Shepherd and Anna Leavitt demonstrate how to add and subtract polynomials by grouping like terms and simplifying. They provide examples of polynomials
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About Adding and Subtracting Polynomials - Simplifying Like Terms
PowerPoint presentation about 'Adding and Subtracting Polynomials - Simplifying Like Terms'. This presentation describes the topic on In this video, Mikela Shepherd and Anna Leavitt demonstrate how to add and subtract polynomials by grouping like terms and simplifying. They provide examples of polynomials. The key topics included in this slideshow are . Download this presentation absolutely free.
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Slide1Mikela Shepherd and Anna Leavitt
Slide2Adding and SubtractingPolynomials (3x 2 + 2x) + (5x 2 + x) = 3x 2 + 5x 2 +2x + x = 8x 2 + 3x (3x 2 + 2x) – (5x 2 + x) = 3x 2 – 5x 2 + 2x – x = - 2x 2 + x Group like terms and simplify!
Slide3Simplify (3 x 3 + 3 x 2 – 4 x + 5) + ( x 3 – 2 x 2 + x – 4) (3 x 3 + 3 x 2 – 4 x + 5) + ( x 3 – 2 x 2 + x – 4) = 3 x 3 + 3 x 2 – 4 x + 5 + x 3 – 2 x 2 + x – 4 = 3 x 3 + x 3 + 3 x 2 – 2 x 2 – 4 x + x + 5 – 4 = 4 x 3 + 1 x 2 – 3 x + 1
Slide4GRAPHINGwith a positive leading coefficient with a negative leading coefficient E V E N D E G R E E
Slide5GRAPHINGwith a positive leading coefficient with a negative leading coefficient O D D D E G R E E
Slide6Which of the following could be the graphof a polynomial whose leading term is –3 x 4 ?
Slide7ANSWER This is a degree 4 polynomial, meaning that the graph will either go up on both ends or down on both ends. Since the leading coefficient is negative, the graph will go down on both ends.
Slide8X- interceptsy = x 2 – x – 42 Factor → (x + 6) (x – 7) The graph will cross the x axis at x = – 6 and x = 7 →
Slide9Y- intercepty = x 2 – x – 42 Substitute 0 for x to find where the graph crosses the y axis y = 0 – 0 – 42 y = 42 Graph x 2 – x – 42 →
Slide10y = x2 – x – 42 ANSWER X = 7 X = - 6 Y = - 42
Slide11Websites Usedwww.purplemath.com http://www.univie.ac.at/future.media/moe/gal erie/fun1/graphen/s.html#top