simmonsl7790
18.07.2019 •
Mathematics
When the square of three times a positive integer is decreased by the integer, the result is $2010$. what is the integer?
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Ответ:
3x = 3 times the number
9x^2 = the square of 3 times the number
.
9x^2-x = 2010
.
9x^2 -x -2010 = 0
So x = 15 is the only integer solution.
.
Checking this value, we find:
9*225 -15 = 2010
correct.
.
x = 15 ;)
Ответ:
8a^2
Step-by-step explanation:
hope that helps you