SOLUTION: Twice the square of a positive integer is 12 more than 10 times that integer. What is the integer?
Algebra.Com
Question 113416: Twice the square of a positive integer is 12 more than 10 times that integer. What is the integer?
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
Let x be the integer.
2x^2=10x+12
x^2=5x+6 divide each side by 2.
x^2-5x-6=0
(x-6)(x+1)=0
x=6
Check:
2*6^2=10*6+12 true
Ed
RELATED QUESTIONS
If twice the square of a positive integer is 12 more than 10 times that integer, what is... (answered by rmromero)
Twice the square of a positive integer is 35 more than 9 times that integer. What is the... (answered by jim_thompson5910)
how do i solve twice the square of a positive integer is 35 more than 9 times that... (answered by Earlsdon)
What is the integer if twice the square of a positive integer is 35 more than 9 times... (answered by ankor@dixie-net.com)
Twice the square of a positive integer is 12 more than 10 times that integer. What is... (answered by josmiceli)
twenty three times a positive integer is more than its square by 63. find the... (answered by Fombitz)
Twice the square of an integer is 21 more than eleven times the integer. Find the... (answered by Alan3354)
If a positive integer is doubled and then increased by 10, the result is 5 less than the... (answered by wilft1)
The reciprocal of two times a certain integer plus the reciprocal of two more times than... (answered by Nate,Paul)