Set the y=0 So it would be \[0=x^4-4x^2\] Distribute it \[0=x^2(x^2-4)\] = \[0=x^2(x+2)(x-2)\]
so would x be -2, 2 and 0?
does the x^2 count
Yes it does. Yep, you got it all correct.
oh and then what about 3x^2-x-2?
wow thank you so much
No problem! Good luck on the rest.
I appreciate it :)
yes thank you.