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Solve the quadratic equation using factoring 9x2 - 16 = 0.
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Jun 11, 2017
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Solve the quadratic equation using factoring 9x2 - 16 = 0.
Mathematics
high-school
Mahmoud Moawad
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Mahmoud Moawad
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Using the zero factor participle:
Solve:
The final solutions to the quadratic equation are:
and
hope this helps!
Jtouzy
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Jun 13, 2017
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Jtouzy
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This is an example of difference of two squares meaning both of these variables are perfect squares. So when you factor this out you get (3x-4)(3x+4). Then since there's an equal sign you have to solve it. So it'd be 3x=4 divide it by 3 and you get 4/3 and 3x=-4 divide again you get -4/3. Your two final answers are 4/3 and -4/3.
Dimitris Bouzikas
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Jun 16, 2017
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Dimitris Bouzikas
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