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Factoring a Polynomial Factor: x3 - 5x2 - 4x + 20. Put them into 2 groups. (x^3-5x^2)+(-4x+20)then factor out again.x^2(x-5)-4(x-5) then (x^2-4)(x-5)then factor out again. The answer: (x-5)(x+2)(x-2). Factoring a Polynomial in 2 variables: 32x^4y-2y^5. Find the GFC. 2y(16x^4-y^4) It is the difference of 2 squares 2y”[(4x^2)^2-(y^2)^2] then 2y(4x^2+y^2)(4x^2-y^2) continue to factor. The answer 2y(4x^2+y^2)(2x+y)(2x-y). Zero-Product Principle: (3x-1)(x+2) set them equal to zero. 3x-1=0 and x+2+0. then simplify 3x=1 solve for x. x=1/3. now solve for the other x. x=-2. the answers: x=1/3 and x=-2. Quadratic Equation by Factoring: 2x^2+7x-4=0. factor: (2x-1)(x+4)=0. set both to 0. 2x-1=0 and x+4. solve for x. 2x=1. x= ½ . now solve for the other x. x=-4. the answers: x=1/2 and x=-4. Quadratic Equation by Factoring with 2 numbers: 3x^2=2x.
Approximate Word count = 499
Approximate Pages = 2
(250 words per page double spaced)
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