lesson4outline - MA 153 Lesson 4 Outline Quiz Solutions...

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MA 153 Lesson 4 Outline Quiz Solutions (Practice problems for distance learning students) 1. Evaluate: () 45 2 3 −− + ( ) 47 28 =− − =− 2. Simplify. Do not leave negative exponents in your answer. 54 37 3 6 x y x y 4 35 7 83 3 6 1 2 y xxy x y = = 3. Simplify. 6 3 92 32 x x =⋅ = 6 18 x Answering of homework questions over lesson 3. Lesson 4 Section 1.3 (con’t) Polynomials Factoring Polynomials Look for common factors first Example: 39 x y +
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Factoring Trinomials 2 ax bx c ±± (assume for now that a =1) The method of trial and error If () ( 2 xb xc x x ++=+ + ) ) 2 3 2 x −+=− If ( 2 x ±−=+ Example: (a) 2 31 0 xx +− (b) 2 71 −+ (c) 2 27 x x ++ (c) 2 273 x x using an alternative method other than trial and error (d)
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lesson4outline - MA 153 Lesson 4 Outline Quiz Solutions...

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