aelbecri39895 aelbecri39895

12-04-2021
Mathematics

contestada

The square of a number decreased by ten times the number is negative nine.

Respuesta :

jacinta57 jacinta57

12-04-2021

Answer:

9 OR 1

Step-by-step explanation:

Let the number be x

x² - 10x = -9

x² - 10x + 9=0

a=1

b=-10

c=9

Solve using the quadratic formula

x =9 or 1

Answer Link

lomoboy lomoboy

12-04-2021

x^2 - 10x =-9

x=1 or x=9

Answer Link

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