ker2minkimadcr
ker2minkimadcr
25-11-2016
Mathematics
contestada
Multiply. (j + 7)(j – 7)
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apologiabiology
apologiabiology
25-11-2016
esaey
obviously a diference of 2 perfect suqres
(a-b)(a+b)=a²-b²
so
(j+7)(j-7)=j²-7² or j²-49
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mehranikita
mehranikita
25-11-2016
your answer is j rase d power 2-49
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