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Sec. 1.7 Completing the Square Page 54 #38, 39, 45, 49, 63 ... · PDF filehit is given by this...

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Algebra II sec. 1.7 1.8 notes.notebook October 14, 2015 Tonight's Homework: Sec. 1.7 Completing the Square Page 54 #38, 39, 45, 49, 63 Sec. 1.8 The Quadratic Formula Page 62 #21, 43, 47, 68, 70 Completing the Square is a process that allows you to write an expression of the form x 2 + bx as the square of a binomial. Take the square root of both sides x 2 6x + 13 = 0 x 2 6x = 13 x 2 6x +9 = 13 +9 (x 3) 2 = 4 (x 3) 2 = √-4 x-3=±2i x=3±2i
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Algebra II sec. 1.7 ­ 1.8 notes.notebook October 14, 2015

Tonight's Homework:Sec. 1.7 Completing the Square

Page 54 #38, 39, 45, 49, 63

Sec. 1.8 The Quadratic FormulaPage 62 #21, 43, 47, 68, 70

Completing the Square is a process that allows you to write an expression of the form 

x2 + bx as the square of a binomial.

Take the square root of both sides

x2 ­ 6x + 13 = 0x2 ­ 6x = ­13x2 ­ 6x + 9 = ­13 + 9(x ­ 3)2 = ­4√(x ­ 3)2 = √-4x-3=±2ix=3±2i

Algebra II sec. 1.7 ­ 1.8 notes.notebook October 14, 2015

Algebra II sec. 1.7 ­ 1.8 notes.notebook October 14, 2015

Vertex Form: f(x) = a(x ­ h)2 + k

Algebra II sec. 1.7 ­ 1.8 notes.notebook October 14, 2015

Algebra II sec. 1.7 ­ 1.8 notes.notebook October 14, 2015

Solve by completing the square.

Algebra II sec. 1.7 ­ 1.8 notes.notebook October 14, 2015

Algebra II sec. 1.7 ­ 1.8 notes.notebook October 14, 2015

Algebra II sec. 1.7 ­ 1.8 notes.notebook October 14, 2015

Algebra II sec. 1.7 ­ 1.8 notes.notebook October 14, 2015

Algebra II sec. 1.7 ­ 1.8 notes.notebook October 14, 2015

Square Roots


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