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Kimberlina

  • 3 years ago

how do you do 16a^2+40q+25

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  1. eyust707
    • 3 years ago
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    What is it you would like to do?

  2. Kimberlina
    • 3 years ago
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    factor

  3. Kimberlina
    • 3 years ago
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    \[16a^2+40a+25\] to make it clearer.

  4. eyust707
    • 3 years ago
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    \[16a^2+40a+25 = (4a +5)(4a+5)= (4a+5)^2\]

  5. Kimberlina
    • 3 years ago
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    did you do it with like the trial and error method?

  6. akash_809
    • 3 years ago
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    @Kimberlina the method for this is calculate 25*16 = 400, now factorize the middle term so that sum of factors =40 and product of factors =400,i.e factors would be 20 and 20 , so you can write equations as \[16 a ^2 +20 a +20 a +25 = 4a (4a +5) + 5 (4a+5)\] =(4a+5)(4a+5) ...this method is also called middle term spilitting

  7. Kimberlina
    • 3 years ago
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    ohhhhhh okay i see ! @akash_809 .. This was actually very helpful .

  8. akash_809
    • 3 years ago
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    @Kimberlina thanks no problems

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