<span>-x^2 y^2 + x^4 + 4y^2 - 4x^2
= </span>x^4 -x^2 y^2 - 4x^2 + 4y^2<span>
= x^2 (x^2 - y^2) - 4 (x^2 - y^2)
= (x^2 - y^2)(x^2 - 4)
= (x + y)(x - y) (x + 2)(x - 2) (....using a^2 - b^2 = (a+b)(a-b) )
hope it helps</span>
Answer:
option 4
Step-by-step explanation:
The normal balance of an accounts payable is credit.
So you start with $800-cr
Any debit posting will reduce that normal balance and any credit posting will increase the normal balance.
The $600 debit posting will create a $200 credit balance(800-600)
The $300 credit posting will create a $500 credit balance(300+200)
Answer: A. $500 - Credit.
It may help to figure it out if you create a t-chart and enter the amounts.
Answer:
x=-1
Step-by-step explanation:
