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What are the factors of these two problems and how do you do the second one? 1. 32a^2 + 24b^2 2. 12a^2 –15ab –16a +20b
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Oct 3, 2018
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What are the factors of these two problems and how do you do the second one?
1. 32a^2 + 24b^2
2. 12a^2 –15ab –16a +20b
Advanced Placement (AP)
high-school
Mateusz Mrozewski
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Mateusz Mrozewski
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12a² –15ab –16a +20b = (12a² –15ab) –(16a -20b)
1st parenthesis : (12a² –15ab) = 3a(4a - 5b)
2nd parenthesis - (16a -20b) = - 4(4a -5b)
1st + 2nd = 3a(4a - 5b) - 4(4a -5b)
common factor (4a-5b) ==>hence (4a=5b)(3a-4)
Mring
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Oct 10, 2018
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Mring
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