Answer:
1.) ???
2.) (2x+3y)(2x-3y)=4x²-9y²
Answer:
4.
Step-by-step explanation:
A and D are opposite.
A is in the negative side and d is in the positive side.
Answer:
Ionic bonding is called when you lose or gain electrons.
Answer:
9.647 x 10 to the 7th
Step-by-step explanation:
that's the answer