a9668432 a9668432

09-05-2021
Mathematics

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if 4 times a number is increased by 6, the result is less than 15 than the square of the number. find the number

Respuesta :

clarch19 clarch19

09-05-2021

Answer:

n = 7

n = -3

Step-by-step explanation:

4n+6 = n²-15

4n = n² - 21

n² - 4n - 21 = 0

(n-7)(n+3) = 0

n = 7

n = -3

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