CO SWBAT will rewrite polynomials that are in
CO: SWBAT will rewrite polynomials that are in factored form into a standard form using FOIL. LO: SWBAT will list the steps of expanding by saying “first, then, last”. Objective Check Find the vertex given f(x) = (x + 2)(3 x – 12) Expand (-x + 3)(2 x – 1)
CO: SWBAT will rewrite polynomials that are in factored form into a standard form using FOIL. LO: SWBAT will list the steps of expanding by saying “first, then, last”. Math II Quadratics: FOIL and Factoring
CO: SWBAT will rewrite polynomials that are in factored form into a standard form using FOIL. LO: SWBAT will list the steps of expanding by saying “first, then, last”. Practice Distributing (FOIL)
Let’s work backwards Factor 2 x 2 + 9 x + 9 • Put the quadratic term in the box • Put the constant diagonal from the quadratic term • Multiply them and put the result on the top of the diamond. • Put the linear term on the bottom of the diamond • What multiplies to give you the top and adds to give you the bottom? • Put those terms in the box • Work backwards out of the box to find your factors
Let’s work backwards Factor 3 x 2 - 11 x - 4 • Put the quadratic term in the box • Put the constant diagonal from the quadratic term • Multiply them and put the result on the top of the diamond. • Put the linear term on the bottom of the diamond • What multiplies to give you the top and adds to give you the bottom? • Put those terms in the box • Work backwards out of the box to find your factors
CO: SWBAT will rewrite polynomials that are in factored form into a standard form using FOIL. LO: SWBAT will list the steps of expanding by saying “first, then, last”. Practice Factoring
CO: SWBAT will rewrite polynomials that are in factored form into a standard form using FOIL. LO: SWBAT will list the steps of expanding by saying “first, then, last”. Assignment: page 339, #10, a-h
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