warm up: factor & list which process(es) you used
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Warm up: Factor & List which process(es) you used. GCF Grouping X-Box Perfect Square Trinomial Difference of Squares. New factoring strategy…. Mc Cheaty Method:. New factoring strategy…. Mc Cheaty Method:. 10-6 Solving Equations by Factoring. - PowerPoint PPT PresentationTRANSCRIPT
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Warm up: Factor & List which process(es) you used.
GCF Grouping X-Box Perfect Square Trinomial Difference of Squares
2 236 9x y
2 220x xy y
216 24 9y y
5 10 4 8xy x y
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New factoring strategy…
Mc Cheaty Method:
23 4 1x x 23 10 8x x
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New factoring strategy…
Mc Cheaty Method:
23 15 12x x
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10-6 Solving Equations by Factoring
Objective: To use the zero product property to solve
equations.
Standard 14.0
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Question for you…
If I have two numbers whose product is zero, what do we know? One or both of the numbers are zero
Zero Product Property If then a = 0 or b = 0 or a&b = 0 So…
xy=0 means that x=0 or y=0
0a b
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Example 1
Solve the equation:
( 3) 0x x
{0, 3}Solution set. Write like this!
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Example 2
Solve the equation:
(2 4)( 7) 0a a
{ 2, 7} Solution set. Write like this!
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LTT
Solve the equation:
( 8)(2 7) 0p p
7{8, }
2
( 9) 0t t
( 5)(2 3)(2 3) 0n n n {0,9}
3 3{5, , }2 2
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Example 3
Solve the equation by factoring:
3 25 34 7b b b
1{0, 7, }
5
Solution set. Write like this!
1. Must Equal Zero
2. Factor Completely
3. Solve
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TOOSolve the equation:
3 22 15x x x
{0, 5,3}
25 2 0s s
2 2 1 0x x 5{0, }2
{1}DR
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CHALLENGE!Solve the equation:
(3 2)( 3) 14y y y
2{ 4, }
3
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Homework
Pg. 598 # 13-29 odd
Golly gee,factoring is fun!!
Let’s Solve equations!
Math is awesome!