answersLogoWhite

0

Show that x2 plus 8x-40 equals 0?

Updated: 8/17/2019
User Avatar

Wiki User

14y ago

Best Answer

An equation, such as the one above, may be true for some values of the variable(s). There need not be any solution in the relevant domain.

To "show" something, in this context, you need an identity - an equation that is true whatever the value of the variable.

The above is NOT an identity, since for x=0 is gives -40 = 0 which is clearly not true.

User Avatar

Wiki User

14y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Show that x2 plus 8x-40 equals 0?
Write your answer...
Submit
Still have questions?
magnify glass
imp