SOLUTION: A number is 12 less than its square. Find all such numbers.
Algebra
->
Algebra
->
Customizable Word Problem Solvers
->
Numbers
-> SOLUTION: A number is 12 less than its square. Find all such numbers.
Log On
Ad:
Over 600 Algebra Word Problems at edhelper.com
Ad:
Algebra Solved!™
: algebra software solves algebra homework problems with step-by-step help!
Ad:
Algebrator™
solves your algebra problems and provides step-by-step explanations!
Word Problems: Numbers, consecutive odd/even, digits
Solvers
Lessons
Answers archive
Quiz
In Depth
Click here to see ALL problems on Numbers Word Problems
Question 630078
:
A number is 12 less than its square. Find all such numbers.
Answer by
richwmiller(9144)
(
Show Source
):
You can
put this solution on YOUR website!
x=x^2-12
0=x^2-x-12
find factors of -12 which add up to -1
-4 and 3
x^2-4x+3x-12=0
x*(x-4)+3*(x-4)=0
(x+3)*(x-4)=0
x=-3
x=4
