Respuesta :
Answer:
0
I dont remember why but I know for a fact it's zero
0
When there is a in front of an expression in parentheses, change the sign of each term in the expression
The statement is true for any value of , because both sides are identical
When there is a in front of an expression in parentheses, change the sign of each term in the expression
The statement is true for any value of , because both sides are identical