Tuesday

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Tuesday

• You need
• - Calculator
• - Whiteboard, marker, eraser

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Section 4-4Solving by Factoring ax2 bx c
0
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Objectives

• I can find the solutions to an equation by
  factoring

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Zero Product Property

• If ab 0, then
• a 0
• b 0

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Solving with Factoring

• Set each variable factor equal to zero and solve
  for x

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Equations

• Remember, to solve an equation by factoring, the
  equation MUST be set equal to ZERO first
• ax2 bx c 0

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Factoring for solutions

• x2 3x 4 0
• (x 4)(x 1) 0
• Then by the Zero Product Property
• (x 4) 0 or (x 1) 0
• If we solve these for x we get the following
  solutions
• x 4 0, so x 4
• x 1 0, so x -1
• These are the two solutions -1, 4

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Example 2
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Example 3
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Example 4
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Example 5
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Homework

• WS Solving by Factoring