SummerKitty SummerKitty

19-07-2017
Mathematics

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For how many positive integer values of x is the sum x^2+4x+4 less than 20?

Respuesta :

19-07-2017

1^2 is 1+4 times 1 is 5 plus 4 is 9
2^2 is 4+4 times 2 is 12 plus 4 is 16
3^2 is 9+ 4 times 3 is 21 XXXXXXX==> 2 times

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