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3 years ago

9

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

2 answers:

Free_Kalibri [48]3 years ago

7 0

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

FromTheMoon [43]3 years ago

5 0

X^2 - 10x =-9

x=1 or x=9

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