Algebra 2 10/19/16 EQ: How do I complete the square to solve for x

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Presentation transcript:

Algebra 2 10/19/16 EQ: How do I complete the square to solve for x Algebra 2 10/19/16 EQ: How do I complete the square to solve for x? HW: pg 345 # 1-31 odd Copy Know it Box on pg 343 in your notes and copy example 4 A and B in your notes (including blue writing) Warm up: See board

Solve for variable (x + 5)2 = 9 (x - 2)2 = 36 (x + 1)2 = 18

Complete the square Goal From: To: ax2 + bx + c = (x + a)2 = x2 + 6x +

x2 - 12x +

4x2 - 48x +

Solve by completing the square x2 -12x + 20

Solve by completing the square 3x2 +18x – 45 = 0

X2 - 6x = -4

2X2 + 16x – 10 = 30

Deriving the quadratic formula ax2 + bx +c = 0