Thread: I need more help!!!

This is the problem.
A number is 42 less than its square. Find all such numbers.

Can you please tell me how to do this? what steps to follow. Thanks.

Originally Posted by Suwanee

This is the problem.
A number is 42 less than its square. Find all such numbers.

Can you please tell me how to do this? what steps to follow. Thanks.

x=x^2-42
Thus,
x^2-x-42=0
Thus,
(x-7)(x+6)=0

thank you.

Originally Posted by Suwanee

thank you.

Keep this up and you'll have more posts than Quick before too long.

-Dan