SOLUTION: if three times the square of a certain natural number is added to the number itself, the result is 14. find that number
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Question 681712: if three times the square of a certain natural number is added to the number itself, the result is 14. find that number Answer by edjones(8007) (Show Source):
You can put this solution on YOUR website! 3x^2+x=14
3x^2+x-14=0
3*-14=-42; 7*-6=-42.
3x^2-6x+7x-14=0
3x(x-2)+7(x-2)=0
(3x+7)(x-2)=0
x=2
.
Ed
