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14-05-2020
Mathematics

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When 7 times a number is added to the square of the number, the sum is 144. Find the number(s).

Respuesta :

14-05-2020

Answer:

x = 9 and x=-16

Step-by-step explanation:

The equation is

x2 + 7x = 144

Solving that using the formula

x= 9 and x=-16

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