Answer:
-4( 4x^2 -y^2)
Step-by-step explanation:
so I did the step on the paper
first line : is the equation itself
2nd line : I multiple the term in the parentheses together
3rd line: I multiple the - 2 to the term I got
4th line : I simplify it
The melting point of sodium is 97.8°C The melting point of potassium is 63.65°C how much higher is the melting point of sodium
1 answer:
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