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Math PapaPodcasts

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education k-12

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Polynomials Ep. 2 - Distributive Law - 3:32

Math PapaPodcasts ·

2009/01/26

KEY CONCEPTS:Multiply the outside value (term) with EVERYTHING inside of the brackets.

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Polynomials Ep. 1 - Types of Polynomials - 4:42

Math PapaPodcasts ·

2009/01/26

KEY CONCEPTS:7x - the 7 represents the numerical coefficient - the x represents the variable (literal coefficient - the unknown) - together they would be multiplied togetherMonomial - consists of one term (i.e. 7x, 5y^2, -3)Binomial - consists of two terms (i.e. 2x-5, 3y^2 + 5y)Trinomial - consists of three terms (i.e 3x^2-4x+7)

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Factoring Ep.7: Factor Difference of Squares - 7:19

Math PapaPodcasts ·

2009/01/15

KEY CONCEPTS:Difference of squares are binomials with the function of subtraction separating the 2 terms. NEVER a positive value.When Factoring such special quadratics:i.) square root the first term and the second termii.) place the first value as the first term of 2 sets of binomials and the second value as the second termiii.) in one set of binomials write a negative, and the second set a positive.ie. x^2-81 = (x+9)(x-9)

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Factoring Ep.4: Factor Quadratics (Trinomials), a=1 -...

Math PapaPodcasts ·

2009/01/15

KEY CONCEPTS:Factoring trinomials in the form of x^2+bx+ci.) Find SUM-PRODUCT: ac-value and b-valueii.) Square root x^2 value and open up a set of binomial bracketsiii.) Write x (or whatever variable is squared as your trinomials first term) as your first term in both bracketsiv.) Write your SUM-PRODUCT numbers as the second variables in each set of binomials

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Factoring Ep.3 - Factor by Grouping - 9:50

Math PapaPodcasts ·

2009/01/15

KEY CONCEPTS:This works only with 4 term polynomialsSTEPS:i.) Find a common factor from all 4 termsii.) Group the first 2 terms and then the last 2 termsiii.) Find common factor from first groupiv.) Find common factor from second groupv.) Factor out the common factor (bracketed terms)vi.) Answer will be a set of binomials being multiplied togethervii.) Check your answer by expanding your answer.

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Polynomials Ep.11: Area Perimeter & Polynomials - 5:33

Math PapaPodcasts ·

2009/01/04

KEY CONCEPTS:Area = length * widthPerimeter = add ALL sides together

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Polynomials Episode 10: Difference of Squares - 5:26

Math PapaPodcasts ·

2009/01/04

KEY CONCEPT:(a-b)(a+b) = a^2-b^2Since 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.

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